using System;

public class Program

{

    public static void Main()

    {

        string str1,str2;

        Console.WriteLine(" insert a string bigger than str2");

         str1=Console.ReadLine();

        Console.WriteLine(" insert a string");

         str2=Console.ReadLine();

        int index=str1.IndexOf(str2);

        if(index<0)

            Console.WriteLine(" not found");

        else

        Console.WriteLine("  found");

    }

}