class Transaction {
    private String type;
    private double amount;
    private LocalDateTime timestamp;

    // Constructor
    public Transaction(String type, double amount) {
        this.type = type;
        this.amount = amount;
        this.timestamp = LocalDateTime.now();
    }

    // Getters
    public String getType() {
        return type;
    }

    public double getAmount() {
        return amount;
    }

    public LocalDateTime getTimestamp() {
        return timestamp;
    }
}

class Account {
    private int accountNumber;
    private double balance;
    private List<Transaction> transactions;

    // Constructor
    public Account(int accountNumber) {
        this.accountNumber = accountNumber;
        this.balance = 0.0;
        this.transactions = new ArrayList<>();
    }

    // Deposit method
    public void deposit(double amount) {
        balance += amount;
        transactions.add(new Transaction("Deposit", amount));
    }

    // Withdraw method
    public void withdraw(double amount) {
        if (balance >= amount) {
            balance -= amount;
            transactions.add(new Transaction("Withdrawal", amount));
        } else {
            System.out.println("Insufficient funds");
        }
    }

    // Transfer method
    public void transfer(Account recipient, double amount) {
        if (balance >= amount) {
            balance -= amount;
            recipient.deposit(amount);
            transactions.add(new Transaction("Transfer to " + recipient.getAccountNumber(), amount));
        } else {
            System.out.println("Insufficient funds");
        }
    }

    // Getters
    public int getAccountNumber() {
        return accountNumber;
    }

    public double getBalance() {
        return balance;
    }

    public List<Transaction> getTransactions() {
        return transactions;
    }
}

class Bank {
    private List<Account> accounts;

    // Constructor
    public Bank() {
        this.accounts = new ArrayList<>();
    }

    // Create account method
    public void createAccount(int accountNumber) {
        accounts.add(new Account(accountNumber));
    }

    // Get account by number method
    public Account getAccount(int accountNumber) {
        for (Account acc : accounts) {
            if (acc.getAccountNumber() == accountNumber) {
                return acc;
            }
        }
        return null;
    }
}

public class Main {
    public static void main(String[] args) {
        Bank bank = new Bank();
        bank.createAccount(1001);
        bank.createAccount(1002);

        Account acc1 = bank.getAccount(1001);
        Account acc2 = bank.getAccount(1002);

        acc1.deposit(1000);
        acc2.deposit(500);

        acc1.transfer(acc2, 200);

        System.out.println("Account 1 balance: " + acc1.getBalance());
        System.out.println("Account 2 balance: " + acc2.getBalance());

        System.out.println("Account 1 transactions:");
        for (Transaction tr : acc1.getTransactions()) {
            System.out.println(tr.getType() + " - $" + tr.getAmount() + " at " + tr.getTimestamp());
        }

        System.out.println("Account 2 transactions:");
        for (Transaction tr : acc2.getTransactions()) {
            System.out.println(tr.getType() + " - $" + tr.getAmount() + " at " + tr.getTimestamp());
        }
    }
}