using System;

public class Program

{

    public static void Main()

    {

        //Declare Variables

        double expense, expenseTotal = 0, monthlyAllowance;

        string strExpense;

        //READ the input data

        Console.WriteLine("Welcome to Budget Analyser");

        Console.WriteLine("You will be prompted to enter your expenses for the Month");

        Console.WriteLine("To terminate the program at any time please enter X in Block letter");

        Console.WriteLine("Enter you first expense: ");

        strExpense = Console.ReadLine();

        Console.WriteLine("Enter your MONTHLY ALLOWANCE: ");

        monthlyAllowance = double.Parse(Console.ReadLine());

        while(strExpense != "X")

        {

            expense = double.Parse(strExpense);

            expenseTotal = expenseTotal + expense;

            Console.WriteLine("Enter your NEXT expense: ");

            strExpense = Console.ReadLine();

        }

        double balance = monthlyAllowance - expenseTotal;

        if(balance < 0)

        {

            Console.WriteLine("You are OVER your Budget for the month by :" + balance);

        }

        else

        {

            Console.WriteLine("You are UNDER your Budget for the month by :" + balance);

        }

    }

}