public static bool IsThere(int[] arr, int num)
        {
            bool checker = false;
            for (int i = 0; i < arr.Length; i++)
                if (arr[i] == num)
                    checker = true;
            else
            return false;
        }
        public static void Main(string[] args)
        {
            int N = int.Parse(Console.ReadLine());
            int[] array = new int[N];
            Console.WriteLine(IsThere(array, int.Parse(Console.ReadLine())));