using System;

Console.WriteLine("How big is your cake?");

​

Console.WriteLine("Width:");

int width = int.Parse(Console.ReadLine());

​

Console.WriteLine("Height:");

int height = int.Parse(Console.ReadLine());

​

int cakeSize = width * height;

​

if (cakeSize <= 0)  

{

​

    Console.WriteLine("Cake with that size does not exist.");

    return;

}

​

else if (cakeSize > 1000)

{

​

    Console.WriteLine("We dont' have sucha big cake.");

    return;

}

else

{

    Console.WriteLine("Good size cake. Total pieces: " + cakeSize);

}

​

string pieses;

​

while (true)

{

    Console.WriteLine("Enter taken pieces or write STOP: ");

    pieses = Console.ReadLine();    

    if (pieses == "STOP")    

    {

        Console.WriteLine("STOP was entered, no more cake to give.");

        break;    

    }    

    int takenPieces = int.Parse(pieses);

    cakeSize -= takenPieces;

    Console.WriteLine("Remaining pieces: " + cakeSize);

    if (cakeSize < 0)    

    {

        Console.WriteLine("No more pieces left!");

        break;    

    }

}