#include "biscuits.h"
#include <bits/stdc++.h>
using namespace std;
#define int long long
using pii = pair<int, int>;
template<typename T>
using Prior = priority_queue<T>;
template<typename T>
using prior = priority_queue<T, vector<T>, greater<T>>;
#define X first
#define Y second
#define ALL(x) (x).begin(), (x).end()
#define eb emplace_back
#define pb push_back
long long count_tastiness(long long x, vector<long long> a) {
int k = a.size();
int ans = 1, sum = 0, lst = 0;
for (int i = 0; i < k; ++i) {
if (sum < (1LL << i) - 1) ans *= (sum >> lst) + 1, lst = i;
sum += (1LL << i) * a[i];
}
ans *= (sum >> lst) + 1;
return ans;
}
