using System;

public class Program

{

    public static void Main()

    {

        var text1 = "1";

        var text2 = "0";

        var text3 = "1";

        var text4 = "0";

        var result = (text1 == "1" ? 1 : 0) + ((text2 == "1" ? 1 : 0) << 1) + ((text3 == "1" ? 1 : 0) << 2) + ((text4 == "1" ? 1 : 0) << 3);

        Console.WriteLine("Test: " + result);

    }

}