using System;

public class Program

{

    public static void Main()

    {

        string Name = "Sachin";

        string Name2 = string.Empty;

        string Name3 = "sachin";

        string Name4 = "aakash";

        string Name5 = null;

​

        PrintHashCode(Name);

        PrintHashCode(Name);

        PrintHashCode(Name2);

        PrintHashCode(Name2);

        PrintHashCode(Name3);

        PrintHashCode(Name3);

        PrintHashCode(Name4);

        PrintHashCode(Name4);

        PrintHashCode(Name5);

        Console.WriteLine("Hello World");

    }

    static void PrintHashCode(string text)

    {

        unchecked

            {

                var hashCode = text?.GetHashCode() ?? 0;

                Console.WriteLine("{0} - {1}", text, hashCode);             

            }

    }

}