using System;

public class Program

{

    public static void Main()

    {

        int length, width, height, totalDims;

        Console.Write("Enter your Length: ");

        // Read and parse your length

        while(!Int32.TryParse(Console.ReadLine(), out length)){

            Console.Write("Enter your Length again: ");

        }

        Console.Write("Enter your Width: ");

        // Read and parse your width

        while(!Int32.TryParse(Console.ReadLine(), out width)){

            Console.Write("Enter your Width again: ");

        }

        Console.Write("Enter your Height: ");

        // Read and parse your height

        while(!Int32.TryParse(Console.ReadLine(), out height)){

            Console.Write("Enter your Height again: ");

        }

​

        // Now you have all of your dimensions so calculate

        totalDims = length * width * height;

        // Since you are performing division, you could have a fractional

        // value here, so you might want to use another type like double

        decimal cubicFeet = totalDims / 1728m;

        // Output your result

        Console.WriteLine("Your total cubic feet is " + cubicFeet);

    }

}