diff --git a/.DS_Store b/.DS_Store
index d88d257..d5b904c 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/doit-algo/.idea/jpa-buddy.xml b/doit-algo/.idea/jpa-buddy.xml
new file mode 100644
index 0000000..966d5f5
--- /dev/null
+++ b/doit-algo/.idea/jpa-buddy.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="JpaBuddyIdeaProjectConfig">
+    <option name="renamerInitialized" value="true" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/doit-algo/.idea/misc.xml b/doit-algo/.idea/misc.xml
index 3099555..3e4500e 100644
--- a/doit-algo/.idea/misc.xml
+++ b/doit-algo/.idea/misc.xml
@@ -7,4 +7,7 @@
   <component name="ProjectRootManager" version="2" languageLevel="JDK_18" default="true" project-jdk-name="18" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
+  <component name="ProjectType">
+    <option name="id" value="jpab" />
+  </component>
 </project>
\ No newline at end of file
diff --git a/jpa-basic/src/main/java/com/example/jpabasic/JpaBasicApplication.java b/jpa-basic/src/main/java/com/example/jpabasic/JpaBasicApplication.java
index 8f89cb3..56c3586 100644
--- a/jpa-basic/src/main/java/com/example/jpabasic/JpaBasicApplication.java
+++ b/jpa-basic/src/main/java/com/example/jpabasic/JpaBasicApplication.java
@@ -3,11 +3,46 @@
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+
 @SpringBootApplication
 public class JpaBasicApplication {
 
 	public static void main(String[] args) {
-		SpringApplication.run(JpaBasicApplication.class, args);
+//		SpringApplication.run(JpaBasicApplication.class, args);
+
+			Scanner scan = new Scanner(System.in);
+
+
+			String[] input = scan.nextLine().split(" ");
+			int m = Integer.parseInt(input[0]);
+			int n = Integer.parseInt(input[0]);
+
+
+			List<String> answerList = new ArrayList<>();
+
+			for (int i = 1; i <= m; i ++) {
+				List<String> lineList = new ArrayList<>();
+				for (int j = 1; j <= n; j ++) {
+					// odd
+					if (i % 2 != 0) {
+						lineList.a("#");
+						// even
+					} else {
+						lineList.push(".");
+					}
+				}
+				answerList.push(lineList);
+			}
+
+
+			String tt = answerList.toString();
+			System.out.println(tt);
+
+
+
 	}
 
 }