using System;

public class Program

{

    public static void Main()

    {

        bool found = false;

        int index = 0;

        int[] items = new int[10];

        int item_to_find;

        items = [0, 88, 6, 9, 78, 100, 1, 77, 3, 10];

        item_to_find = Int32.Parse(Console.ReadLine());

        while (found == false && index < items.Length)

        {

            if (items[index] == item_to_find) 

        {

                found = true;

                return;

        }

            else

            {

                index = index + 1;

            }

        }

    }

}