#include "paint.h"
#include<bits/stdc++.h>
using namespace std;
#define mp make_pair
#define INF 10000000
#define MOD 1000000007
#define MID ((l+r)/2)
#define HASHMOD 2305843009213693951
#define ll long long
#define ull unsigned long long
#define F first
#define S second
typedef pair<ll, ll> ii;
typedef pair<ii, int> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef map<int, int> mii;
#define EPS 1e-6
#define FOR(i,n) for(int i=0;i<((int)(n));i++)
#define FORi(i,a,b) for(int i=((int)(a));i<((int)(b));i++)
#define FOA(v, a) for(auto v : a)
#define len(x) ((int)x.size())
string solve_puzzle(string s, vector<int> c) {
int n = len(s);
int t=0;
FOR(i, len(c)){
if(i!=len(c)-1) t++;
t+=c[i];
}
string ans;
FOR(i,n){
ans+="?";
}
int p=0;
FOA(v, c){
//cout<<p<<endl;
FOR(i, v-(n-t)){
ans[i + p + (n-t)] = 'X';
}
p+= v + 1;
}
if(n==t){
FOR(i,n) if(ans[i]=='?') ans[i] = '_';
}
return ans;
}
