#include <bits/stdc++.h> //Andrei Alexandru a.k.a Sho10
#include "grader.h"
#define ll long long
#define double long double
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#define all(a) (a).begin(), (a).end()
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define pi pair
#define rc(s) return cout<<s,0
#define endl '\n'
#define mod 1000007
#define PI 3.14159265359
#define MAXN 100005
#define INF 1000000005
#define LINF 1000000000000000005ll
#define CODE_START ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
void play(){
map<char,ll>viz,m;
for(ll i=1;i<=50;i+=2){
char a,b;
a=faceup(i);
b=faceup(i+1);
if(viz[a]>=1){
m[a]=i;
}else viz[a]=i;
if(viz[b]>=1){
m[b]=i+1;
}else viz[b]=i+1;
}
for(char c='A';c<'Z';c++)
{
faceup(viz[c]);
faceup(m[c]);
}
}
/*
int32_t main(){
CODE_START;
*/
