@1.cs

using System;
namespace _1 {
    class Program {
        //1<=n<=50
        //1<=m<=1e8
        //1<=k<=1e8
        static int n, m;
        static int[] k,tmp;
        static bool solve() {
            tmp = new int[n * n];
            for (int i = 0; i < k.Length; i++)
                for (int j = 0; j < k.Length; j++)
                    tmp[i] = k[i] + k[j];
            Array.Sort(tmp);
            for (int i = 0; i < k.Length; i++)
                for (int j = 0; j < k.Length; j++)
                    if (Array.IndexOf(tmp, m - k[i] - k[j]) != -1)
                        return true;
            return false;
        }
        static void Main(string[] args) {
            n = int.Parse(Console.ReadLine());
            m = int.Parse(Console.ReadLine());
            k = Array.ConvertAll(Console.ReadLine().Split(' '), int.Parse);
            if (solve())
                Console.WriteLine("True");
            else
                Console.WriteLine("False");
        }
    }
}