using System;

​

namespace BankProgram

{

    public class BankAccount

    {

        #region Constructors

        public BankAccount(double accountBalance)

        {

            AccountBalance = accountBalance;

        }

        #endregion

​

        #region Methods

        public void TransferIn(double amount, BankAccount otherAccount)

        {

            if (AccountBalance < 0)

            {

                throw new Exception("Insufficient funds");

            }

            if (otherAccount.AccountBalance < amount)

            {

                throw new Exception("Insufficient funds");

            }

            AccountBalance += amount;

            otherAccount.AccountBalance -= amount;

        }

        public void TransferOut(double amount, BankAccount otherAccount)

        {

            if (AccountBalance < 0)

            {

                throw new Exception("Insufficient funds");

            }

            if (AccountBalance < amount)

            {

                throw new Exception("Insufficient funds");

            }

            AccountBalance -= amount;

            otherAccount.AccountBalance += amount;

        }

        #endregion

​

        #region Properties

        public double AccountBalance { get; private set; }

        #endregion

    }

​

    public class Program

    {

        public static void Main(string[] args)

        {

            var bankAccount1 = new BankAccount(250000);

            var bankAccount2 = new BankAccount(1000000);

            bankAccount1.TransferIn(20000, bankAccount2);

            Console.WriteLine($"Account 1 Balance: { bankAccount1.AccountBalance }");

            Console.WriteLine($"Account 2 Balance: {bankAccount2.AccountBalance}");

        }

    }

}

​