#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef double db;
typedef string str;
typedef pair<ll,ll> pl;
typedef vector<ll> vl;
typedef vector<vl> vvl;
#define mp make_pair
#define se second
#define pb push_back
#define pf push_front
#define nn <<"\n"
#define F0R(i,a) for(ll i=0;i<a;i++)
#define FOR(i,a,b) for(ll i=a;i<b;i++)
vector<int> coin_flips(vector<int> b, int c){
vector<int> flips(b.size(),0);
if(b[0] != c) flips[0] = 1;
return flips;
}
int find_coin(vector<int> b){
return b[0];
}
