#include <bits/stdc++.h>
#include "biscuits.h"
using namespace std;
typedef long long llint;
const int MAXN = 70;
const llint B = 3133731337133731337;
llint x;
llint a[MAXN], val[MAXN];
llint dp[MAXN][10005];
llint calc (int pos, int del) {
if (pos == 61) return 1;
if (dp[pos][del] != -1) return dp[pos][del];
llint ost = val[pos] - del;
llint res = calc(pos + 1, val[pos + 1] - (ost / 2 + a[pos + 1]));
if (ost >= x) {
res += calc(pos + 1, val[pos + 1] - ((ost - x) / 2 + a[pos + 1]));
}
return dp[pos][del] = res;
}
llint count_tastiness (llint X, vector <llint> A) {
x = X;
for (int i = 0; i <= 60; i++) a[i] = 0;
for (int i = 0; i < (int)A.size(); i++) a[i] = A[i];
for (int i = 0; i <= 60; i++) {
val[i] = a[i] + (i == 0 ? 0 : val[i - 1] / 2);
}
memset(dp, -1, sizeof dp);
return calc(0, 0);
}
