using System;

public class Program

{

    public static void Main()

    {

        string text = Console.ReadLine();

        string pattern = Console.ReadLine();

        int firstIndex = text.IndexOf(pattern, StringComparison.Ordinal);

        int lastIndex = text.LastIndexOf(pattern, StringComparison.Ordinal);

        while (true)

        {

            if (firstIndex >= 0 && lastIndex > firstIndex + pattern.Length-1 && lastIndex > 0)

            {

                text = text.Remove(lastIndex, pattern.Length );

                text = text.Remove(firstIndex, pattern.Length);

                Console.WriteLine("Shaked it.");

            }

            else 

            {

                Console.WriteLine("No shake.");

                break;

            }

​

            pattern = pattern.Remove(pattern.Length / 2, 1);

            if(pattern.Length == 0)

            {

                Console.WriteLine("No shake.");

                break;

            }

            else

            {

                firstIndex = text.IndexOf(pattern, StringComparison.Ordinal);

                lastIndex = text.LastIndexOf(pattern, StringComparison.Ordinal);

            }

        }

        Console.WriteLine(text);

    }

}