#include <iostream>
#include <vector>
using namespace std;

int main() {
    int N;
    long long W;
    cin >> N >> W;
    vector<long long> A(N);
    for (auto &x : A) cin >> x;
    int ret = 0;
    for (int s = 0; s < 1 << N; ++s) {
        bool good = false;
        for (int t = s;; t = (t - 1) & s) {
            long long sum = 0;
            for (int i = 0; i < N; ++i) sum += (((s >> i) & 1) + ((t >> i) & 1)) * A[i];
            good |= (sum == W * 2);
            if (t == 0) break;
        }
        ret += good;
    }
    cout << ret << '\n';
}