using System;

​

public static class StringExtensions

{

    public static string Times(this string str, int times)

    {

        string result = "";

        for (int i = 0; i < times; i += 1)

        {

            result += str;

        }

        return result;

    }

}

public class Program

{   

    public static void Main()

    {

​

        Console.WriteLine("Hello".Times(3));

    }

}