diff --git a/src/task_1/index.ts b/src/task_1/index.ts
index 7556a31..ecb3612 100644
--- a/src/task_1/index.ts
+++ b/src/task_1/index.ts
@@ -8,9 +8,73 @@
  */
 
 export class Currency{
+    private readonly _name : string;
+    private _value : number;
+    private readonly _unit : string;
+    readonly _type: CurrencyType;
 
+    get name() {
+        return this._name;
+    }
+
+    get value() {
+        return this._value;
+    }
+
+    set value(newValue: number) {
+        if (newValue < 0) {
+            throw new Error();
+        }
+        this._value = newValue;
+    }
+
+    get unit() {
+        return this._unit;
+    }
+
+    get type() {
+        return this._type;
+    }
+
+    constructor(name: string, value: number, unit: string, type?: CurrencyType) {
+        if (!name || value < 0 || value === undefined || !unit) {
+            throw new Error();
+        }
+        this._name = name;
+        this._value = value;
+        this._unit = unit;
+        if(type){
+            this._type = type
+        } else if (name in MaterialNames) {
+            this._type = CurrencyType.Material
+        } else if(name in CryptoNames){
+            this._type = CurrencyType.Crypt
+        } else if(name in MetalNames){
+            this._type = CurrencyType.Metal
+        } else {
+            throw new Error()
+        }
+    }
 }
 
 export enum CurrencyType {
+    Material,
+    Crypt,
+    Metal,
+}
+
+enum MaterialNames {
+    Dollar,
+    Ruble,
+    ru,
+}
 
+enum CryptoNames {
+    XRP,
+    Etherium,
+    alpha,
 }
+
+enum MetalNames {
+    Gold,
+}
\ No newline at end of file
diff --git a/src/task_2/index.ts b/src/task_2/index.ts
index c39ed97..9d1193d 100644
--- a/src/task_2/index.ts
+++ b/src/task_2/index.ts
@@ -5,5 +5,35 @@
  * XRP
  * Etherium
  * Gold
-*/
+ */
+import {Currency} from "../task_1";
 
+export class Dollar extends Currency {
+    constructor(value: number) {
+        super("Dollar", value, "USD");
+    }
+}
+
+export class Ruble extends Currency {
+    constructor(value: number) {
+        super("Ruble", value, "RUB");
+    }
+}
+
+export class XRP extends Currency {
+    constructor(value: number) {
+        super("XRP", value, "XRP");
+    }
+}
+
+export class Etherium extends Currency {
+    constructor(value: number) {
+        super("Etherium", value, "ETH");
+    }
+}
+
+export class Gold extends Currency {
+    constructor(value: number) {
+        super("Gold", value, "GRAMM");
+    }
+}
diff --git a/src/task_3/index.ts b/src/task_3/index.ts
index 3f5ea67..59f2562 100644
--- a/src/task_3/index.ts
+++ b/src/task_3/index.ts
@@ -3,15 +3,40 @@
  *	Из хранилища можно снимать валюту с помощью withdraw(Currency)
  *	В хранилище можно вкладывать валюту через deposit(Currency)
  *	Из хранлилища, можно переводить валюту через transfer(Currency, Vault)
-*/
+ */
 import { Currency } from "../task_1";
 
 export class Vault implements ISecureVaultRequisites{
 	public id: number;
 	public store: Set<Currency> = new Set<Currency>()
-}
+	public withdraw(currency: Currency) {
+		this.store.forEach((valute) => {
+			if (valute.name === currency.name && valute.value >= currency.value) {
+				valute.value -= currency.value;
+			} else {
+				throw new Error();
+			}
+		});
+	}
+	public deposit(currency: Currency) {
+		let newCurrency = true;
+		this.store.forEach((valute) => {
+			if (valute.name === currency.name) {
+				valute.value += currency.value;
+				newCurrency = false;
+			}
+		});
+		if (newCurrency) {
+			this.store.add(currency);
+		}
+	}
 
+	public transfer(currency: Currency, vault: Vault) {
+		this.withdraw(currency);
+		vault.deposit(currency);
+	}
+}
 
 export interface ISecureVaultRequisites{
 	id: number
-}
+}
\ No newline at end of file
diff --git a/src/task_4/index.ts b/src/task_4/index.ts
index e390bde..ebc325d 100644
--- a/src/task_4/index.ts
+++ b/src/task_4/index.ts
@@ -11,17 +11,72 @@ import { Currency } from "../task_1";
 import { ISecureVaultRequisites } from "../task_3";
 
 export class SmartContract implements IContract{
+    public id: number;
+    public state: ContractState = ContractState.pending;
+    public value: Currency;
+    public receiver: ISecureVaultRequisites;
+    public sender: ISecureVaultRequisites;
 
+    public closeTransfer(): void {
+        setTimeout(() => {
+            this.state = ContractState.close;
+        }, 3000)
+    }
+
+    public rejectTransfer(): void {
+        setTimeout(() => {
+            this.state = ContractState.rejected;
+        }, 3000)
+    }
+
+    public signAndTransfer(): void {
+        this.state = ContractState.transfer;
+    }
 }
 
 export class BankingContract implements IContract{
+    public id: number;
+    public state: ContractState = ContractState.pending;
+    public value: Currency;
+    public receiver: ISecureVaultRequisites;
+    public sender: ISecureVaultRequisites;
+
+    public closeTransfer(): void {
+        this.state = ContractState.close;
+    }
+
+    public signAndTransfer(): void {
+        this.state = ContractState.transfer;
+    }
 
+    public rejectTransfer(): void {
+        this.state = ContractState.rejected;
+    }
 }
 
 export class LogisticContract implements IContract{
+    public id: number;
+    public state: ContractState = ContractState.pending;
+    public value: Currency;
+    public receiver: ISecureVaultRequisites;
+    public sender: ISecureVaultRequisites;
 
-}
+    public closeTransfer(): void {
+        setTimeout(() => {
+            this.state = ContractState.close;
+        }, 6000)
+    }
+
+    public rejectTransfer(): void {
+        setTimeout(() => {
+            this.state = ContractState.rejected;
+        }, 6000)
+    }
 
+    public signAndTransfer(): void {
+        this.state = ContractState.transfer;
+    }
+}
 
 export interface IContract{
     /**
@@ -75,4 +130,4 @@ export enum ContractState{
      * Контракт отменен, либо отклонен
      */
     rejected
-}
+}
\ No newline at end of file
diff --git a/src/task_5/index.ts b/src/task_5/index.ts
index d93b101..891c8b4 100644
--- a/src/task_5/index.ts
+++ b/src/task_5/index.ts
@@ -7,17 +7,41 @@
  *
  * Хранилища должны быть сохранены в массив vaultStore: Vault[]
  */
-import { IContract } from "../task_4";
-import { ISecureVaultRequisites } from "../task_3";
+import {IContract} from "../task_4";
+import {ISecureVaultRequisites, Vault} from "../task_3";
+
 
 export class BankController{
+    private static _controller: BankController;
+    private vaultStore: Vault[] = [];
+    public static getController(): BankController {
+        if (!BankController._controller) {
+            BankController._controller = new BankController();
+        }
 
-    public registerVault(): ISecureVaultRequisites{
+        return BankController._controller;
+    }
+    public registerVault(vault :Vault ): ISecureVaultRequisites{
+        this.vaultStore.push(vault);
 
+        return vault;
     }
 
     public proceedContract(contract: IContract) {
+        const sender = this.vaultStore.find((el) => el.id === contract.sender.id);
+        const receiver = this.vaultStore.find((el) => el.id === contract.receiver.id);
 
+        if(sender !== undefined && receiver !== undefined) {
+            contract.signAndTransfer()
+            try {
+                sender.transfer(contract.value, receiver)
+                contract.closeTransfer;
+            } catch (e) {
+                contract.rejectTransfer();
+            }
+        }else {
+            contract.rejectTransfer();
+            throw new Error();
+        }
     }
-}
-
+}
\ No newline at end of file