using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

​

public class Program

{

    public static void Main()

    {

        string name;

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

        name = Console.ReadLine();

        greetings(name);

    }

    static void greetings(string first)

    {

        Console.WriteLine("Hello " + first + "!");

    }

}