using System;

​

class BankAcc

{

    private double bal = 0;

    public void Withdraw(double n)

    {

        bal -= n;

    }

    public void Deposit(double n)

    {

        bal += n;

    }

    public double GetBal()

    {

        return bal;

    }

}

public class Program

{

    public static void Main()

    {

        BankAcc b = new BankAcc();

        b.Deposit(250);

        b.Withdraw(169);

        Console.WriteLine(b.GetBal());

    }

}