//#pragma GCC target("avx2")
//#pragma GCC optimization("O3")
//#pragma GCC optimization("unroll-loops")
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define ff first
#define ss second
#define pb push_back
#define SZ(x) ((int)(x).size())
#define all(x) x.begin(), x.end()
#define rep(i, a, b) for(int i = (a); i < (b); i++)
#define per(i, a, b) for(int i = (a); i >= (b); i--)
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
long long count_tastiness(long long X, vector<long long> a){
ll ans = 0;
rep(y, 0, 100000+1){
ll x = X; int bt = 20;
while(bt >= 0 && !(y >> bt & 1))
bt--;
per(i, SZ(a) - 1, 0){
if(bt < i){
continue;
}
ll cur = a[i];
while(true){
ll sub = min(x, cur / (1ll << (bt - i)));
x -= sub;
cur -= sub * (1ll << (bt - i));
if(x == 0){
x = X;
--bt;
while(bt >= 0 && !(y >> bt & 1))
bt--;
if(bt < i){
break;
}
} else break;
}
}
if(bt < 0){
ans++;
}
}
return ans;
}
