using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter variable 1 value: ");

        string str1= Console.ReadLine();

            int var1=Convert.ToInt32(str1);

        Console.WriteLine("Enter variable 2 value: ");

        string str2= Console.ReadLine();

            int var2=Convert.ToInt32(str2);

        Console.WriteLine("Enter variable 3 value: ");

        string str3= Console.ReadLine();

            int var3=Convert.ToInt32(str3);

        Console.WriteLine("Enter variable 4 value: ");

        string str4= Console.ReadLine();

            int var4=Convert.ToInt32(str4);

        Console.WriteLine("The product of these variables is: "+(var1*var2*var3*var4)); 

    }

}