Seti_1

using System;
using System.IO;


class Program
{
    static void Main(string[] args)
    {
        StreamReader sr = File.OpenText("test.txt");
        string k = null;
        string input = Console.ReadLine();
        for(;(k=sr.ReadLine())!=null;)
        {
            if (k.Contains(input)) { Console.WriteLine(k); break; }
        }
        if (k==null) { Console.WriteLine("Not found!"); }
        sr.Close();
        Console.ReadKey();
    }
}