#include <iostream>
#include <vector>
#include <atcoder/modint>

using mint = atcoder::static_modint<1234567891>;

int main() {
    int N;
    int64_t M;
    std::cin >> N >> M;
    std::vector<int> A(N);
    for (int &a : A) std::cin >> a;

    int S = 0;
    for (int a : A) S += a;
    std::vector<mint> dp(S + 1);
    dp[0] = 1;

    while (M) {
        std::vector<mint> ndp(S * 2 + 1);
        for (int i = 0; i <= S; i++) ndp[i] = dp[i];
        for (int a : A) {
            for (int i = S * 2; i >= a; i--) {
                ndp[i] += ndp[i - a];
            }
        }
        int m = M & 1;
        for (int i = 0; (i << 1 | m) <= S * 2; i++) {
            dp[i] = ndp[i << 1 | m];
        }
        M >>= 1;
    }

    std::cout << dp[0].val() << std::endl;
}