diff --git a/351002/Abrashin/.gitattributes b/351002/Abrashin/.gitattributes
new file mode 100644
index 000000000..8af972cde
--- /dev/null
+++ b/351002/Abrashin/.gitattributes
@@ -0,0 +1,3 @@
+/gradlew text eol=lf
+*.bat text eol=crlf
+*.jar binary
diff --git a/351002/Abrashin/.gitignore b/351002/Abrashin/.gitignore
new file mode 100644
index 000000000..cd70ec81d
--- /dev/null
+++ b/351002/Abrashin/.gitignore
@@ -0,0 +1,39 @@
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Kotlin ###
+.kotlin
diff --git a/351002/Abrashin/build.gradle.kts b/351002/Abrashin/build.gradle.kts
new file mode 100644
index 000000000..0ed5f0f29
--- /dev/null
+++ b/351002/Abrashin/build.gradle.kts
@@ -0,0 +1,42 @@
+plugins {
+    kotlin("jvm") version "2.2.21"
+    kotlin("plugin.spring") version "2.2.21"
+    kotlin("kapt") version "2.2.21"
+    id("org.springframework.boot") version "3.4.3"
+    id("io.spring.dependency-management") version "1.1.7"
+}
+
+group = "com.example"
+version = "0.0.1-SNAPSHOT"
+description = "DistComp"
+
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(17)
+    }
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation("org.springframework.boot:spring-boot-starter-web")
+    implementation("org.springframework.boot:spring-boot-starter-validation")
+    implementation("org.jetbrains.kotlin:kotlin-reflect")
+    implementation("org.mapstruct:mapstruct:1.6.3")
+    kapt("org.mapstruct:mapstruct-processor:1.6.3")
+    testImplementation("org.springframework.boot:spring-boot-starter-test")
+    testImplementation("org.jetbrains.kotlin:kotlin-test-junit5")
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
+}
+
+kotlin {
+    compilerOptions {
+        freeCompilerArgs.addAll("-Xjsr305=strict", "-Xannotation-default-target=param-property")
+    }
+}
+
+tasks.withType<Test> {
+    useJUnitPlatform()
+}
diff --git a/351002/Abrashin/gradle/wrapper/gradle-wrapper.jar b/351002/Abrashin/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 000000000..61285a659
Binary files /dev/null and b/351002/Abrashin/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/351002/Abrashin/gradle/wrapper/gradle-wrapper.properties b/351002/Abrashin/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 000000000..37f78a6af
--- /dev/null
+++ b/351002/Abrashin/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/351002/Abrashin/gradlew b/351002/Abrashin/gradlew
new file mode 100644
index 000000000..adff685a0
--- /dev/null
+++ b/351002/Abrashin/gradlew
@@ -0,0 +1,248 @@
+#!/bin/sh
+
+#
+# Copyright © 2015 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/351002/Abrashin/gradlew.bat b/351002/Abrashin/gradlew.bat
new file mode 100644
index 000000000..c4bdd3ab8
--- /dev/null
+++ b/351002/Abrashin/gradlew.bat
@@ -0,0 +1,93 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/351002/Abrashin/settings.gradle.kts b/351002/Abrashin/settings.gradle.kts
new file mode 100644
index 000000000..ac89496a4
--- /dev/null
+++ b/351002/Abrashin/settings.gradle.kts
@@ -0,0 +1,4 @@
+plugins {
+    id("org.gradle.toolchains.foojay-resolver-convention") version "1.0.0"
+}
+rootProject.name = "DistComp"
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/DistCompApplication.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/DistCompApplication.kt
new file mode 100644
index 000000000..54b365a34
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/DistCompApplication.kt
@@ -0,0 +1,11 @@
+package com.example.distcomp
+
+import org.springframework.boot.autoconfigure.SpringBootApplication
+import org.springframework.boot.runApplication
+
+@SpringBootApplication
+class DistCompApplication
+
+fun main(args: Array<String>) {
+    runApplication<DistCompApplication>(*args)
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/config/JacksonConfig.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/config/JacksonConfig.kt
new file mode 100644
index 000000000..239ae5d75
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/config/JacksonConfig.kt
@@ -0,0 +1,16 @@
+package com.example.distcomp.config
+
+import com.fasterxml.jackson.databind.SerializationFeature
+import org.springframework.context.annotation.Configuration
+import org.springframework.http.converter.HttpMessageConverter
+import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer
+
+@Configuration
+class JacksonConfig : WebMvcConfigurer {
+    override fun extendMessageConverters(converters: MutableList<HttpMessageConverter<*>>) {
+        converters.filterIsInstance<MappingJackson2HttpMessageConverter>().forEach {
+            it.objectMapper.disable(SerializationFeature.WRAP_ROOT_VALUE)
+        }
+    }
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/controller/CreatorController.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/controller/CreatorController.kt
new file mode 100644
index 000000000..6933168e2
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/controller/CreatorController.kt
@@ -0,0 +1,45 @@
+package com.example.distcomp.controller
+
+import com.example.distcomp.dto.request.CreatorRequestTo
+import com.example.distcomp.dto.response.CreatorResponseTo
+import com.example.distcomp.service.CreatorService
+import jakarta.validation.Valid
+import org.springframework.http.HttpStatus
+import org.springframework.web.bind.annotation.*
+
+@RestController
+@RequestMapping("/api/v1.0/creators")
+class CreatorController(private val service: CreatorService) {
+
+    @PostMapping
+    @ResponseStatus(HttpStatus.CREATED)
+    fun create(@Valid @RequestBody request: CreatorRequestTo): CreatorResponseTo {
+        return service.create(request)
+    }
+
+    @GetMapping("/{id}")
+    fun getById(@PathVariable id: Long): CreatorResponseTo {
+        return service.getById(id)
+    }
+
+    @GetMapping
+    fun getAll(): List<CreatorResponseTo> {
+        return service.getAll()
+    }
+
+    @PutMapping("/{id}")
+    fun update(@PathVariable id: Long, @Valid @RequestBody request: CreatorRequestTo): CreatorResponseTo {
+        return service.patch(id, request)
+    }
+
+    @PatchMapping("/{id}")
+    fun patch(@PathVariable id: Long, @Valid @RequestBody request: CreatorRequestTo): CreatorResponseTo {
+        return service.patch(id, request)
+    }
+
+    @DeleteMapping("/{id}")
+    @ResponseStatus(HttpStatus.NO_CONTENT)
+    fun delete(@PathVariable id: Long) {
+        service.delete(id)
+    }
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/controller/NoteController.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/controller/NoteController.kt
new file mode 100644
index 000000000..d31aa35fa
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/controller/NoteController.kt
@@ -0,0 +1,45 @@
+package com.example.distcomp.controller
+
+import com.example.distcomp.dto.request.NoteRequestTo
+import com.example.distcomp.dto.response.NoteResponseTo
+import com.example.distcomp.service.NoteService
+import jakarta.validation.Valid
+import org.springframework.http.HttpStatus
+import org.springframework.web.bind.annotation.*
+
+@RestController
+@RequestMapping("/api/v1.0/notes")
+class NoteController(private val service: NoteService) {
+
+    @PostMapping
+    @ResponseStatus(HttpStatus.CREATED)
+    fun create(@Valid @RequestBody request: NoteRequestTo): NoteResponseTo {
+        return service.create(request)
+    }
+
+    @GetMapping("/{id}")
+    fun getById(@PathVariable id: Long): NoteResponseTo {
+        return service.getById(id)
+    }
+
+    @GetMapping
+    fun getAll(): List<NoteResponseTo> {
+        return service.getAll()
+    }
+
+    @PutMapping("/{id}")
+    fun update(@PathVariable id: Long, @Valid @RequestBody request: NoteRequestTo): NoteResponseTo {
+        return service.patch(id, request)
+    }
+
+    @PatchMapping("/{id}")
+    fun patch(@PathVariable id: Long, @Valid @RequestBody request: NoteRequestTo): NoteResponseTo {
+        return service.patch(id, request)
+    }
+
+    @DeleteMapping("/{id}")
+    @ResponseStatus(HttpStatus.NO_CONTENT)
+    fun delete(@PathVariable id: Long) {
+        service.delete(id)
+    }
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/controller/StickerController.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/controller/StickerController.kt
new file mode 100644
index 000000000..7f25f2378
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/controller/StickerController.kt
@@ -0,0 +1,45 @@
+package com.example.distcomp.controller
+
+import com.example.distcomp.dto.request.StickerRequestTo
+import com.example.distcomp.dto.response.StickerResponseTo
+import com.example.distcomp.service.StickerService
+import jakarta.validation.Valid
+import org.springframework.http.HttpStatus
+import org.springframework.web.bind.annotation.*
+
+@RestController
+@RequestMapping("/api/v1.0/stickers")
+class StickerController(private val service: StickerService) {
+
+    @PostMapping
+    @ResponseStatus(HttpStatus.CREATED)
+    fun create(@Valid @RequestBody request: StickerRequestTo): StickerResponseTo {
+        return service.create(request)
+    }
+
+    @GetMapping("/{id}")
+    fun getById(@PathVariable id: Long): StickerResponseTo {
+        return service.getById(id)
+    }
+
+    @GetMapping
+    fun getAll(): List<StickerResponseTo> {
+        return service.getAll()
+    }
+
+    @PutMapping("/{id}")
+    fun update(@PathVariable id: Long, @Valid @RequestBody request: StickerRequestTo): StickerResponseTo {
+        return service.patch(id, request)
+    }
+
+    @PatchMapping("/{id}")
+    fun patch(@PathVariable id: Long, @Valid @RequestBody request: StickerRequestTo): StickerResponseTo {
+        return service.patch(id, request)
+    }
+
+    @DeleteMapping("/{id}")
+    @ResponseStatus(HttpStatus.NO_CONTENT)
+    fun delete(@PathVariable id: Long) {
+        service.delete(id)
+    }
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/controller/TweetController.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/controller/TweetController.kt
new file mode 100644
index 000000000..aeb6982ec
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/controller/TweetController.kt
@@ -0,0 +1,63 @@
+package com.example.distcomp.controller
+
+import com.example.distcomp.dto.response.CreatorResponseTo
+import com.example.distcomp.dto.response.NoteResponseTo
+import com.example.distcomp.dto.response.StickerResponseTo
+import com.example.distcomp.dto.request.TweetRequestTo
+import com.example.distcomp.dto.response.TweetResponseTo
+import com.example.distcomp.service.TweetService
+import jakarta.validation.Valid
+import org.springframework.http.HttpStatus
+import org.springframework.web.bind.annotation.*
+
+@RestController
+@RequestMapping("/api/v1.0/tweets")
+class TweetController(private val service: TweetService) {
+
+    @PostMapping
+    @ResponseStatus(HttpStatus.CREATED)
+    fun create(@Valid @RequestBody request: TweetRequestTo): TweetResponseTo {
+        return service.create(request)
+    }
+
+    @GetMapping("/{id}")
+    fun getById(@PathVariable id: Long): TweetResponseTo {
+        return service.getById(id)
+    }
+
+    @GetMapping
+    fun getAll(): List<TweetResponseTo> {
+        return service.getAll()
+    }
+
+    @PutMapping("/{id}")
+    fun update(@PathVariable id: Long, @Valid @RequestBody request: TweetRequestTo): TweetResponseTo {
+        return service.patch(id, request)
+    }
+
+    @PatchMapping("/{id}")
+    fun patch(@PathVariable id: Long, @Valid @RequestBody request: TweetRequestTo): TweetResponseTo {
+        return service.patch(id, request)
+    }
+
+    @GetMapping("/{id}/creator")
+    fun getCreatorByTweetId(@PathVariable id: Long): CreatorResponseTo {
+        return service.getCreatorByTweetId(id)
+    }
+
+    @GetMapping("/{id}/stickers")
+    fun getStickersByTweetId(@PathVariable id: Long): List<StickerResponseTo> {
+        return service.getStickersByTweetId(id)
+    }
+
+    @GetMapping("/{id}/notes")
+    fun getNotesByTweetId(@PathVariable id: Long): List<NoteResponseTo> {
+        return service.getNotesByTweetId(id)
+    }
+
+    @DeleteMapping("/{id}")
+    @ResponseStatus(HttpStatus.NO_CONTENT)
+    fun delete(@PathVariable id: Long) {
+        service.delete(id)
+    }
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/request/CreatorRequestTo.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/request/CreatorRequestTo.kt
new file mode 100644
index 000000000..fcc9f8cb1
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/request/CreatorRequestTo.kt
@@ -0,0 +1,16 @@
+package com.example.distcomp.dto.request
+
+import com.fasterxml.jackson.annotation.JsonRootName
+import jakarta.validation.constraints.Size
+
+@JsonRootName("creator")
+data class CreatorRequestTo(
+    @field:Size(min = 2, max = 64)
+    var login: String? = null,
+    @field:Size(min = 8, max = 128)
+    var password: String? = null,
+    @field:Size(min = 2, max = 64)
+    var firstname: String? = null,
+    @field:Size(min = 2, max = 64)
+    var lastname: String? = null
+)
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/request/NoteRequestTo.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/request/NoteRequestTo.kt
new file mode 100644
index 000000000..0ba8e6821
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/request/NoteRequestTo.kt
@@ -0,0 +1,11 @@
+package com.example.distcomp.dto.request
+
+import com.fasterxml.jackson.annotation.JsonRootName
+import jakarta.validation.constraints.Size
+
+@JsonRootName("note")
+data class NoteRequestTo(
+    var tweetId: Long? = null,
+    @field:Size(min = 2, max = 2048)
+    var content: String? = null
+)
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/request/StickerRequestTo.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/request/StickerRequestTo.kt
new file mode 100644
index 000000000..2215fb08c
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/request/StickerRequestTo.kt
@@ -0,0 +1,10 @@
+package com.example.distcomp.dto.request
+
+import com.fasterxml.jackson.annotation.JsonRootName
+import jakarta.validation.constraints.Size
+
+@JsonRootName("sticker")
+data class StickerRequestTo(
+    @field:Size(min = 2, max = 32)
+    var name: String? = null
+)
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/request/TweetRequestTo.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/request/TweetRequestTo.kt
new file mode 100644
index 000000000..b6b9f37c8
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/request/TweetRequestTo.kt
@@ -0,0 +1,13 @@
+package com.example.distcomp.dto.request
+
+import com.fasterxml.jackson.annotation.JsonRootName
+import jakarta.validation.constraints.Size
+
+@JsonRootName("tweet")
+data class TweetRequestTo(
+    var creatorId: Long? = null,
+    @field:Size(min = 2, max = 64)
+    var title: String? = null,
+    @field:Size(min = 2, max = 2048)
+    var content: String? = null
+)
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/response/CreatorResponseTo.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/response/CreatorResponseTo.kt
new file mode 100644
index 000000000..9099c79d9
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/response/CreatorResponseTo.kt
@@ -0,0 +1,11 @@
+package com.example.distcomp.dto.response
+
+import com.fasterxml.jackson.annotation.JsonRootName
+
+@JsonRootName("creator")
+data class CreatorResponseTo(
+    var id: Long? = null,
+    var login: String? = null,
+    var firstname: String? = null,
+    var lastname: String? = null
+)
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/response/NoteResponseTo.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/response/NoteResponseTo.kt
new file mode 100644
index 000000000..f18dc0e46
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/response/NoteResponseTo.kt
@@ -0,0 +1,10 @@
+package com.example.distcomp.dto.response
+
+import com.fasterxml.jackson.annotation.JsonRootName
+
+@JsonRootName("note")
+data class NoteResponseTo(
+    var id: Long? = null,
+    var tweetId: Long? = null,
+    var content: String? = null
+)
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/response/StickerResponseTo.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/response/StickerResponseTo.kt
new file mode 100644
index 000000000..5ce1f0e43
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/response/StickerResponseTo.kt
@@ -0,0 +1,9 @@
+package com.example.distcomp.dto.response
+
+import com.fasterxml.jackson.annotation.JsonRootName
+
+@JsonRootName("sticker")
+data class StickerResponseTo(
+    var id: Long? = null,
+    var name: String? = null
+)
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/response/TweetResponseTo.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/response/TweetResponseTo.kt
new file mode 100644
index 000000000..108eee9fe
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/dto/response/TweetResponseTo.kt
@@ -0,0 +1,14 @@
+package com.example.distcomp.dto.response
+
+import com.fasterxml.jackson.annotation.JsonRootName
+import java.time.LocalDateTime
+
+@JsonRootName("tweet")
+data class TweetResponseTo(
+    var id: Long? = null,
+    var creatorId: Long? = null,
+    var title: String? = null,
+    var content: String? = null,
+    var created: LocalDateTime? = null,
+    var modified: LocalDateTime? = null
+)
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/exception/BadRequestException.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/exception/BadRequestException.kt
new file mode 100644
index 000000000..6c809f802
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/exception/BadRequestException.kt
@@ -0,0 +1,7 @@
+package com.example.distcomp.exception
+
+import org.springframework.http.HttpStatus
+import org.springframework.web.bind.annotation.ResponseStatus
+
+@ResponseStatus(HttpStatus.BAD_REQUEST)
+class BadRequestException(message: String) : RuntimeException(message)
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/exception/ConflictException.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/exception/ConflictException.kt
new file mode 100644
index 000000000..98148c50a
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/exception/ConflictException.kt
@@ -0,0 +1,7 @@
+package com.example.distcomp.exception
+
+import org.springframework.http.HttpStatus
+import org.springframework.web.bind.annotation.ResponseStatus
+
+@ResponseStatus(HttpStatus.CONFLICT)
+class ConflictException(message: String) : RuntimeException(message)
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/exception/ErrorResponse.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/exception/ErrorResponse.kt
new file mode 100644
index 000000000..da8215d65
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/exception/ErrorResponse.kt
@@ -0,0 +1,6 @@
+package com.example.distcomp.exception
+
+data class ErrorResponse(
+    val message: String,
+    val code: Int
+)
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/exception/GlobalExceptionHandler.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/exception/GlobalExceptionHandler.kt
new file mode 100644
index 000000000..479699ff8
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/exception/GlobalExceptionHandler.kt
@@ -0,0 +1,37 @@
+package com.example.distcomp.exception
+
+import org.springframework.http.HttpStatus
+import org.springframework.http.ResponseEntity
+import org.springframework.web.bind.MethodArgumentNotValidException
+import org.springframework.web.bind.annotation.ControllerAdvice
+import org.springframework.web.bind.annotation.ExceptionHandler
+
+@ControllerAdvice
+class GlobalExceptionHandler {
+
+    @ExceptionHandler(NotFoundException::class)
+    fun handleNotFound(ex: NotFoundException): ResponseEntity<ErrorResponse> {
+        return ResponseEntity(ErrorResponse(ex.message ?: "Not Found", 404), HttpStatus.NOT_FOUND)
+    }
+
+    @ExceptionHandler(ConflictException::class)
+    fun handleConflict(ex: ConflictException): ResponseEntity<ErrorResponse> {
+        return ResponseEntity(ErrorResponse(ex.message ?: "Conflict", 409), HttpStatus.CONFLICT)
+    }
+
+    @ExceptionHandler(BadRequestException::class)
+    fun handleBadRequest(ex: BadRequestException): ResponseEntity<ErrorResponse> {
+        return ResponseEntity(ErrorResponse(ex.message ?: "Bad Request", 400), HttpStatus.BAD_REQUEST)
+    }
+
+    @ExceptionHandler(MethodArgumentNotValidException::class)
+    fun handleValidation(ex: MethodArgumentNotValidException): ResponseEntity<ErrorResponse> {
+        val message = ex.bindingResult.allErrors.joinToString("; ") { it.defaultMessage ?: "Error" }
+        return ResponseEntity(ErrorResponse(message, 400), HttpStatus.BAD_REQUEST)
+    }
+
+    @ExceptionHandler(Exception::class)
+    fun handleGeneral(ex: Exception): ResponseEntity<ErrorResponse> {
+        return ResponseEntity(ErrorResponse(ex.message ?: "Internal Error", 500), HttpStatus.INTERNAL_SERVER_ERROR)
+    }
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/exception/NotFoundException.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/exception/NotFoundException.kt
new file mode 100644
index 000000000..7f06c1613
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/exception/NotFoundException.kt
@@ -0,0 +1,7 @@
+package com.example.distcomp.exception
+
+import org.springframework.http.HttpStatus
+import org.springframework.web.bind.annotation.ResponseStatus
+
+@ResponseStatus(HttpStatus.NOT_FOUND)
+class NotFoundException(message: String) : RuntimeException(message)
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/mapper/CreatorMapper.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/mapper/CreatorMapper.kt
new file mode 100644
index 000000000..c86a48405
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/mapper/CreatorMapper.kt
@@ -0,0 +1,12 @@
+package com.example.distcomp.mapper
+
+import com.example.distcomp.dto.request.CreatorRequestTo
+import com.example.distcomp.dto.response.CreatorResponseTo
+import com.example.distcomp.model.Creator
+import org.mapstruct.Mapper
+
+@Mapper(componentModel = "spring")
+interface CreatorMapper {
+    fun toEntity(request: CreatorRequestTo): Creator
+    fun toResponse(entity: Creator): CreatorResponseTo
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/mapper/NoteMapper.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/mapper/NoteMapper.kt
new file mode 100644
index 000000000..07947e7c4
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/mapper/NoteMapper.kt
@@ -0,0 +1,12 @@
+package com.example.distcomp.mapper
+
+import com.example.distcomp.dto.request.NoteRequestTo
+import com.example.distcomp.dto.response.NoteResponseTo
+import com.example.distcomp.model.Note
+import org.mapstruct.Mapper
+
+@Mapper(componentModel = "spring")
+interface NoteMapper {
+    fun toEntity(request: NoteRequestTo): Note
+    fun toResponse(entity: Note): NoteResponseTo
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/mapper/StickerMapper.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/mapper/StickerMapper.kt
new file mode 100644
index 000000000..f499d126b
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/mapper/StickerMapper.kt
@@ -0,0 +1,12 @@
+package com.example.distcomp.mapper
+
+import com.example.distcomp.dto.request.StickerRequestTo
+import com.example.distcomp.dto.response.StickerResponseTo
+import com.example.distcomp.model.Sticker
+import org.mapstruct.Mapper
+
+@Mapper(componentModel = "spring")
+interface StickerMapper {
+    fun toEntity(request: StickerRequestTo): Sticker
+    fun toResponse(entity: Sticker): StickerResponseTo
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/mapper/TweetMapper.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/mapper/TweetMapper.kt
new file mode 100644
index 000000000..847f378d5
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/mapper/TweetMapper.kt
@@ -0,0 +1,12 @@
+package com.example.distcomp.mapper
+
+import com.example.distcomp.dto.request.TweetRequestTo
+import com.example.distcomp.dto.response.TweetResponseTo
+import com.example.distcomp.model.Tweet
+import org.mapstruct.Mapper
+
+@Mapper(componentModel = "spring")
+interface TweetMapper {
+    fun toEntity(request: TweetRequestTo): Tweet
+    fun toResponse(entity: Tweet): TweetResponseTo
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/model/BaseEntity.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/model/BaseEntity.kt
new file mode 100644
index 000000000..e9a2a9966
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/model/BaseEntity.kt
@@ -0,0 +1,5 @@
+package com.example.distcomp.model
+
+abstract class BaseEntity(
+    var id: Long? = null
+)
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/model/Creator.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/model/Creator.kt
new file mode 100644
index 000000000..fd5ae7ee7
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/model/Creator.kt
@@ -0,0 +1,9 @@
+package com.example.distcomp.model
+
+class Creator(
+    id: Long? = null,
+    var login: String = "",
+    var password: String = "",
+    var firstname: String = "",
+    var lastname: String = ""
+) : BaseEntity(id)
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/model/Note.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/model/Note.kt
new file mode 100644
index 000000000..02e956e56
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/model/Note.kt
@@ -0,0 +1,7 @@
+package com.example.distcomp.model
+
+class Note(
+    id: Long? = null,
+    var tweetId: Long? = null,
+    var content: String = ""
+) : BaseEntity(id)
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/model/Sticker.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/model/Sticker.kt
new file mode 100644
index 000000000..c08901069
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/model/Sticker.kt
@@ -0,0 +1,6 @@
+package com.example.distcomp.model
+
+class Sticker(
+    id: Long? = null,
+    var name: String = ""
+) : BaseEntity(id)
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/model/Tweet.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/model/Tweet.kt
new file mode 100644
index 000000000..917691322
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/model/Tweet.kt
@@ -0,0 +1,13 @@
+package com.example.distcomp.model
+
+import java.time.LocalDateTime
+
+class Tweet(
+    id: Long? = null,
+    var creatorId: Long? = null,
+    var title: String = "",
+    var content: String = "",
+    var stickerIds: Set<Long> = emptySet(),
+    var created: LocalDateTime? = null,
+    var modified: LocalDateTime? = null
+) : BaseEntity(id)
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/repository/CreatorRepository.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/repository/CreatorRepository.kt
new file mode 100644
index 000000000..eccb03961
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/repository/CreatorRepository.kt
@@ -0,0 +1,9 @@
+package com.example.distcomp.repository
+
+import com.example.distcomp.model.Creator
+import org.springframework.stereotype.Repository
+
+@Repository
+class CreatorRepository : InMemoryRepository<Creator>() {
+    fun findByLogin(login: String) = storage.values.find { it.login == login }
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/repository/CrudRepository.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/repository/CrudRepository.kt
new file mode 100644
index 000000000..bc3e60075
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/repository/CrudRepository.kt
@@ -0,0 +1,11 @@
+package com.example.distcomp.repository
+
+import com.example.distcomp.model.BaseEntity
+
+interface CrudRepository<T : BaseEntity, ID> {
+    fun save(entity: T): T
+    fun findById(id: ID): T?
+    fun findAll(): List<T>
+    fun deleteById(id: ID): Boolean
+    fun existsById(id: ID): Boolean
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/repository/InMemoryRepository.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/repository/InMemoryRepository.kt
new file mode 100644
index 000000000..dd452a75d
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/repository/InMemoryRepository.kt
@@ -0,0 +1,26 @@
+package com.example.distcomp.repository
+
+import com.example.distcomp.model.BaseEntity
+import java.util.concurrent.ConcurrentHashMap
+import java.util.concurrent.atomic.AtomicLong
+
+abstract class InMemoryRepository<T : BaseEntity> : CrudRepository<T, Long> {
+    protected val storage = ConcurrentHashMap<Long, T>()
+    private val idCounter = AtomicLong(1)
+
+    override fun save(entity: T): T {
+        if (entity.id == null) {
+            entity.id = idCounter.getAndIncrement()
+        }
+        storage[entity.id!!] = entity
+        return entity
+    }
+
+    override fun findById(id: Long): T? = storage[id]
+
+    override fun findAll(): List<T> = storage.values.toList()
+
+    override fun deleteById(id: Long): Boolean = storage.remove(id) != null
+
+    override fun existsById(id: Long): Boolean = storage.containsKey(id)
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/repository/NoteRepository.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/repository/NoteRepository.kt
new file mode 100644
index 000000000..1183108cc
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/repository/NoteRepository.kt
@@ -0,0 +1,9 @@
+package com.example.distcomp.repository
+
+import com.example.distcomp.model.Note
+import org.springframework.stereotype.Repository
+
+@Repository
+class NoteRepository : InMemoryRepository<Note>() {
+    fun findByTweetId(tweetId: Long): List<Note> = storage.values.filter { it.tweetId == tweetId }
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/repository/StickerRepository.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/repository/StickerRepository.kt
new file mode 100644
index 000000000..6f2eeb1fe
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/repository/StickerRepository.kt
@@ -0,0 +1,9 @@
+package com.example.distcomp.repository
+
+import com.example.distcomp.model.Sticker
+import org.springframework.stereotype.Repository
+
+@Repository
+class StickerRepository : InMemoryRepository<Sticker>() {
+    fun findByName(name: String) = storage.values.find { it.name == name }
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/repository/TweetRepository.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/repository/TweetRepository.kt
new file mode 100644
index 000000000..dde9445b6
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/repository/TweetRepository.kt
@@ -0,0 +1,9 @@
+package com.example.distcomp.repository
+
+import com.example.distcomp.model.Tweet
+import org.springframework.stereotype.Repository
+
+@Repository
+class TweetRepository : InMemoryRepository<Tweet>() {
+    fun findByTitle(title: String) = storage.values.find { it.title == title }
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/service/CreatorService.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/service/CreatorService.kt
new file mode 100644
index 000000000..e70faad77
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/service/CreatorService.kt
@@ -0,0 +1,57 @@
+package com.example.distcomp.service
+
+import com.example.distcomp.dto.request.CreatorRequestTo
+import com.example.distcomp.dto.response.CreatorResponseTo
+import com.example.distcomp.exception.ConflictException
+import com.example.distcomp.exception.NotFoundException
+import com.example.distcomp.mapper.CreatorMapper
+import com.example.distcomp.repository.CreatorRepository
+import org.springframework.stereotype.Service
+
+@Service
+class CreatorService(
+    private val repository: CreatorRepository,
+    private val mapper: CreatorMapper
+) {
+    fun create(request: CreatorRequestTo): CreatorResponseTo {
+        if (repository.findByLogin(request.login!!) != null) {
+            throw ConflictException("Creator with login ${request.login} already exists")
+        }
+        val entity = mapper.toEntity(request)
+        val saved = repository.save(entity)
+        return mapper.toResponse(saved)
+    }
+
+    fun getById(id: Long): CreatorResponseTo {
+        val entity = repository.findById(id) ?: throw NotFoundException("Creator with id $id not found")
+        return mapper.toResponse(entity)
+    }
+
+    fun getAll(): List<CreatorResponseTo> {
+        return repository.findAll().map { mapper.toResponse(it) }
+    }
+
+    fun patch(id: Long, request: CreatorRequestTo): CreatorResponseTo {
+        val existing = repository.findById(id) ?: throw NotFoundException("Creator with id $id not found")
+        
+        request.login?.let {
+            val other = repository.findByLogin(it)
+            if (other != null && other.id != id) {
+                throw ConflictException("Creator with login $it already exists")
+            }
+            existing.login = it
+        }
+        request.password?.let { existing.password = it }
+        request.firstname?.let { existing.firstname = it }
+        request.lastname?.let { existing.lastname = it }
+        
+        val saved = repository.save(existing)
+        return mapper.toResponse(saved)
+    }
+
+    fun delete(id: Long) {
+        if (!repository.deleteById(id)) {
+            throw NotFoundException("Creator with id $id not found")
+        }
+    }
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/service/NoteService.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/service/NoteService.kt
new file mode 100644
index 000000000..4275aff0c
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/service/NoteService.kt
@@ -0,0 +1,59 @@
+package com.example.distcomp.service
+
+import com.example.distcomp.dto.request.NoteRequestTo
+import com.example.distcomp.dto.response.NoteResponseTo
+import com.example.distcomp.exception.NotFoundException
+import com.example.distcomp.mapper.NoteMapper
+import com.example.distcomp.repository.NoteRepository
+import com.example.distcomp.repository.TweetRepository
+import org.springframework.stereotype.Service
+
+@Service
+class NoteService(
+    private val repository: NoteRepository,
+    private val tweetRepository: TweetRepository,
+    private val mapper: NoteMapper
+) {
+    fun create(request: NoteRequestTo): NoteResponseTo {
+        if (request.tweetId != null && !tweetRepository.existsById(request.tweetId!!)) {
+            throw NotFoundException("Tweet with id ${request.tweetId} not found")
+        }
+        val entity = mapper.toEntity(request)
+        val saved = repository.save(entity)
+        return mapper.toResponse(saved)
+    }
+
+    fun getById(id: Long): NoteResponseTo {
+        val entity = repository.findById(id) ?: throw NotFoundException("Note with id $id not found")
+        return mapper.toResponse(entity)
+    }
+
+    fun getAll(): List<NoteResponseTo> {
+        return repository.findAll().map { mapper.toResponse(it) }
+    }
+
+    fun patch(id: Long, request: NoteRequestTo): NoteResponseTo {
+        val existing = repository.findById(id) ?: throw NotFoundException("Note with id $id not found")
+        
+        request.tweetId?.let {
+            if (!tweetRepository.existsById(it)) {
+                throw NotFoundException("Tweet with id $it not found")
+            }
+            existing.tweetId = it
+        }
+        request.content?.let { existing.content = it }
+        
+        val saved = repository.save(existing)
+        return mapper.toResponse(saved)
+    }
+
+    fun delete(id: Long) {
+        if (!repository.deleteById(id)) {
+            throw NotFoundException("Note with id $id not found")
+        }
+    }
+
+    fun getNotesByTweetId(tweetId: Long): List<NoteResponseTo> {
+        return repository.findByTweetId(tweetId).map { mapper.toResponse(it) }
+    }
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/service/StickerService.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/service/StickerService.kt
new file mode 100644
index 000000000..6129f7d6c
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/service/StickerService.kt
@@ -0,0 +1,54 @@
+package com.example.distcomp.service
+
+import com.example.distcomp.dto.request.StickerRequestTo
+import com.example.distcomp.dto.response.StickerResponseTo
+import com.example.distcomp.exception.ConflictException
+import com.example.distcomp.exception.NotFoundException
+import com.example.distcomp.mapper.StickerMapper
+import com.example.distcomp.repository.StickerRepository
+import org.springframework.stereotype.Service
+
+@Service
+class StickerService(
+    private val repository: StickerRepository,
+    private val mapper: StickerMapper
+) {
+    fun create(request: StickerRequestTo): StickerResponseTo {
+        if (repository.findByName(request.name!!) != null) {
+            throw ConflictException("Sticker with name ${request.name} already exists")
+        }
+        val entity = mapper.toEntity(request)
+        val saved = repository.save(entity)
+        return mapper.toResponse(saved)
+    }
+
+    fun getById(id: Long): StickerResponseTo {
+        val entity = repository.findById(id) ?: throw NotFoundException("Sticker with id $id not found")
+        return mapper.toResponse(entity)
+    }
+
+    fun getAll(): List<StickerResponseTo> {
+        return repository.findAll().map { mapper.toResponse(it) }
+    }
+
+    fun patch(id: Long, request: StickerRequestTo): StickerResponseTo {
+        val existing = repository.findById(id) ?: throw NotFoundException("Sticker with id $id not found")
+        
+        request.name?.let {
+            val other = repository.findByName(it)
+            if (other != null && other.id != id) {
+                throw ConflictException("Sticker with name $it already exists")
+            }
+            existing.name = it
+        }
+        
+        val saved = repository.save(existing)
+        return mapper.toResponse(saved)
+    }
+
+    fun delete(id: Long) {
+        if (!repository.deleteById(id)) {
+            throw NotFoundException("Sticker with id $id not found")
+        }
+    }
+}
diff --git a/351002/Abrashin/src/main/kotlin/com/example/distcomp/service/TweetService.kt b/351002/Abrashin/src/main/kotlin/com/example/distcomp/service/TweetService.kt
new file mode 100644
index 000000000..e2be00873
--- /dev/null
+++ b/351002/Abrashin/src/main/kotlin/com/example/distcomp/service/TweetService.kt
@@ -0,0 +1,91 @@
+package com.example.distcomp.service
+
+import com.example.distcomp.dto.request.TweetRequestTo
+import com.example.distcomp.dto.response.TweetResponseTo
+import com.example.distcomp.dto.response.CreatorResponseTo
+import com.example.distcomp.dto.response.NoteResponseTo
+import com.example.distcomp.dto.response.StickerResponseTo
+import com.example.distcomp.exception.ConflictException
+import com.example.distcomp.exception.NotFoundException
+import com.example.distcomp.mapper.TweetMapper
+import com.example.distcomp.repository.TweetRepository
+import org.springframework.stereotype.Service
+import java.time.LocalDateTime
+
+@Service
+class TweetService(
+    private val repository: TweetRepository,
+    private val mapper: TweetMapper,
+    private val creatorService: CreatorService,
+    private val stickerService: StickerService,
+    private val noteService: NoteService
+) {
+    fun create(request: TweetRequestTo): TweetResponseTo {
+        request.creatorId?.let {
+            creatorService.getById(it)
+        }
+        if (repository.findByTitle(request.title!!) != null) {
+            throw ConflictException("Tweet with title ${request.title} already exists")
+        }
+        val entity = mapper.toEntity(request)
+        val now = LocalDateTime.now()
+        entity.created = now
+        entity.modified = now
+        val saved = repository.save(entity)
+        return mapper.toResponse(saved)
+    }
+
+    fun getById(id: Long): TweetResponseTo {
+        val entity = repository.findById(id) ?: throw NotFoundException("Tweet with id $id not found")
+        return mapper.toResponse(entity)
+    }
+
+    fun getAll(): List<TweetResponseTo> {
+        return repository.findAll().map { mapper.toResponse(it) }
+    }
+
+    fun patch(id: Long, request: TweetRequestTo): TweetResponseTo {
+        val existing = repository.findById(id) ?: throw NotFoundException("Tweet with id $id not found")
+        
+        request.creatorId?.let {
+            creatorService.getById(it)
+            existing.creatorId = it
+        }
+        request.title?.let {
+            val other = repository.findByTitle(it)
+            if (other != null && other.id != id) {
+                throw ConflictException("Tweet with title $it already exists")
+            }
+            existing.title = it
+        }
+        request.content?.let { existing.content = it }
+        
+        existing.modified = LocalDateTime.now()
+        val saved = repository.save(existing)
+        return mapper.toResponse(saved)
+    }
+
+    fun getCreatorByTweetId(id: Long): CreatorResponseTo {
+        val tweet = repository.findById(id) ?: throw NotFoundException("Tweet with id $id not found")
+        val creatorId = tweet.creatorId ?: throw NotFoundException("Creator for tweet $id not found")
+        return creatorService.getById(creatorId)
+    }
+
+    fun getStickersByTweetId(id: Long): List<StickerResponseTo> {
+        val tweet = repository.findById(id) ?: throw NotFoundException("Tweet with id $id not found")
+        return tweet.stickerIds.map { stickerId ->
+            stickerService.getById(stickerId)
+        }
+    }
+
+    fun getNotesByTweetId(id: Long): List<NoteResponseTo> {
+        val tweet = repository.findById(id) ?: throw NotFoundException("Tweet with id $id not found")
+        return noteService.getNotesByTweetId(tweet.id!!)
+    }
+
+    fun delete(id: Long) {
+        if (!repository.deleteById(id)) {
+            throw NotFoundException("Tweet with id $id not found")
+        }
+    }
+}
diff --git a/351002/Abrashin/src/main/resources/application.properties b/351002/Abrashin/src/main/resources/application.properties
new file mode 100644
index 000000000..0bf6ca6e1
--- /dev/null
+++ b/351002/Abrashin/src/main/resources/application.properties
@@ -0,0 +1 @@
+server.port=24110
diff --git a/351002/Abrashin/src/test/kotlin/com/example/distcomp/DistCompApplicationTests.kt b/351002/Abrashin/src/test/kotlin/com/example/distcomp/DistCompApplicationTests.kt
new file mode 100644
index 000000000..8459eeabf
--- /dev/null
+++ b/351002/Abrashin/src/test/kotlin/com/example/distcomp/DistCompApplicationTests.kt
@@ -0,0 +1,13 @@
+package com.example.distcomp
+
+import org.junit.jupiter.api.Test
+import org.springframework.boot.test.context.SpringBootTest
+
+@SpringBootTest
+class DistCompApplicationTests {
+
+    @Test
+    fun contextLoads() {
+    }
+
+}