#include "biscuits.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vii;
typedef pair<int,int> pi;
typedef vector<pi> pii;
typedef tuple<int,int,int> ti;
typedef vector<ll> li;
typedef vector<li> lii;
#define REP(i,a,b) for(int i=a;i<b;i++)
#define F first
#define S second
#define PB push_back
#define LSOne(s) ((s)&(-s))
#define all(x) (x).begin(),(x).end()
ll INF=1000000000000000010;
int inf=1e9+10;
ll M=1e9+7;
long long count_tastiness(long long x, std::vector<long long> a) {
int n=a.size();
vector<ll> pow(61,1);
REP(i,1,61)pow[i]=pow[i-1]*2LL;
REP(i,0,n-1)if(a[i]>1){
a[i+1]+=(a[i]-1)/2;
if((a[i]-1)%2==0)a[i]=1;
else a[i]=2;
}
ll ans=1;
int pos=0;
while(pos<n){
vi b;
while(pos<n&&a[pos]!=0)b.PB(a[pos++]);
while(pos<n&&a[pos]==0)pos++;
int m=b.size();
if(m==0)break;
ll cnt=pow[m];
REP(i,0,m)if(b[i]==2)cnt+=pow[i];
ans*=cnt;
}
return ans;
}
