#ifndef ARTHUR_LOCAL
#include "biscuits.h"
#endif
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define len(x) int((x).size())
ll dp[101][40001];
ll count_tastiness(ll x, vector<ll> A)
{
while(len(A) <= 100) A.push_back(0LL);
for(int i=0; i<len(A); i++)
{
if(A[i] > x)
{
ll pass_up = ll((A[i]-x)/2LL);
A[i] -= 2LL*pass_up; // -= pass_up;
A[i+1] += pass_up;
// A[i] = x;
}
}
// cout << A[0] << endl;
dp[0][0] = 1;
for(int b=0; b<=99; b++)
{
// transition up from dp[b] using 1<<b
// case 1: don't add the zero
// if(dp[b][i] != 0) cout << b << " " << i << " " << dp[b][i] << endl;
for(int i=0; i<=40000; i++)
{
// if(dp[b][i] != 0) cout << b << " " << i << " " << dp[b][i] << endl;
dp[b+1][int(i/2) + A[b]] += dp[b][i];
// if(dp[b+1][int(i/2) + A[b]])
}
for(int i=0; i<=40000; i++)
{
if(A[b] + int(i/2) >= x)
{
dp[b+1][int(i/2) + A[b] - x] += dp[b][i];
}
}
}
ll ans=0LL;
for(int i=0; i<=40000; i++)
{
ans += dp[100][i];
}
return ans;
}
#ifdef ARTHUR_LOCAL
int main()
{
cout << count_tastiness(3, {5, 2, 1}) << endl;
}
#endif
