using System;
using System.Console;

module StrRep
{
    Repeat(this s : string, n : int) : string
    {
        String('x', n).Replace("x", s)
    }

    Main() : void
    {
        WriteLine("ha".Repeat(5));
        WriteLine("*".Repeat(5));
        WriteLine(String('*', 5)); // repeating single char

    }
}