#7ExtractURLsFromText

using System;
using System.Text.RegularExpressions;

class ExtractURLsFromText
{
    static void Main()
    {
        string input = Console.ReadLine();
        Regex linkParser = new Regex(@"\b(?:http://|www\.)\S+\b", RegexOptions.Compiled | RegexOptions.IgnoreCase);
        foreach (Match m in linkParser.Matches(input))
        {
            Console.WriteLine(m);
        }
    }
}