using System;

​

public class Program

{

    public static void Main()

    {

        var savings = new Account("Savings", 100);

        Console.WriteLine(savings);

        var checking = new Account("Checking", 3.50m);

        checking.Deposit(50);

        Console.WriteLine(checking);

    }

​

    public class Account

    {

        private string nickname;

        private decimal balance;

        public Account(string nickname, decimal balance)

        {

            this.nickname = nickname;

            this.balance = balance;

        }

        public void Withdraw(decimal amount)

        {

            balance -= amount;  

        }

        public void Deposit(decimal amount)

        {

            balance += amount;  

        }

        public override string ToString()

        {

            return $"{nickname} => Balance: {balance:c}";   

        }

    }

}