using System;

public class Program

{

    public static void Main()

    {

        var str=("Hello\rWorld");

        var str2=("Hello\nWorld");

        var str3=("Hello\r\nWorld");

        Console.WriteLine(str.Contains(Environment.NewLine)+","+str2.Contains(Environment.NewLine)+","+str3.Contains(Environment.NewLine)+"!");

    }

}