using System;

public class Program

{

    public static void Main()

    {

        int n1,n2,n3,s;

        Console.Write("Insert the length: ");

        n1 = int.Parse(Console.ReadLine());

        Console.Write("Insert the width : ");

        n2 = int.Parse(Console.ReadLine());

        Console.Write("insert the height: ");

        n3 = int.Parse(Console.ReadLine());

        s = n1*n2*n3;

        Console.WriteLine("the size is: {0} ",s);

    }

}