#include "biscuits.h"
#ifdef NYAOWO
#include "grader.cpp"
#endif
#include <bits/stdc++.h>
#define For(i, a, b) for(int i = a; i <= b; i++)
#define Forr(i, a, b) for(int i = a; i >= b; i--)
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define sz(x) ((int)x.size())
#define eb emplace_back
#define int LL
using namespace std;
using i32 = int32_t;
using LL = long long;
using pii = pair<int, int>;
const int MAXK = 60;
int a[MAXK + 10];
long long count_tastiness(long long x, std::vector<long long> _a) {
int k = sz(_a);
int su = 0;
For(i, 0, k - 1) {
a[i] = _a[i];
su += (1 << i) * a[i];
}
int ans = 0;;
For(s, 0, su) {
int cur = 0;
bool fail = false;
For(i, 0, 19) {
cur = cur / 2 + a[i];
if(s & (1 << i)) cur -= x;
if(cur < 0) fail = true;
}
if(!fail) ans++;
}
return ans;
}
