#include <iostream>
#include <vector>

int main() {
    int T;
    std::cin >> T;
    while (T --> 0) {
        int N;
        long long W;
        std::cin >> N >> W;

        std::vector<long long> w(N);
        for (auto &e : w) std::cin >> e;

        std::vector<long long> F(N + 2);
        F[0] = 1, F[1] = 2;
        for (int i = 2; i < N + 2; ++i) {
            F[i] = F[i - 1] + F[i - 2];
        }

        long long lb = 0;
        auto dfs = [&](auto dfs, int i, long long rW, long long v) -> void {
            lb = std::max(lb, v);
            if (i == -1) return;
            if (rW < w[i]) {
                dfs(dfs, i - 1, rW, v);
            } else {
                if (i == 0) {
                    dfs(dfs, i - 1, rW - w[i], v + F[i]);
                } else {
                    dfs(dfs, i - 1, rW - w[i], v + F[i]);
                    if (rW < w[i] + w[i - 1] and rW >= w[i - 1]) {
                        if (v + F[i + 1] - 2 > lb) {
                            dfs(dfs, i - 1, rW, v);
                        }
                    }
                }
            }
        };
        dfs(dfs, N - 1, W, 0LL);

        std::cout << lb << std::endl;
    }
}