#include "grader.h"
#include "memory.h"
#include <bits/stdc++.h>
using namespace std;
#define F first
#define S second
#define FOR(i,a,b) for (auto i = (a); i <= (b); ++i)
#define NFOR(i,a,b) for(auto i = (a); i >= (b); --i)
#define all(x) (x).begin(), (x).end()
#define sz(x) int(x.size())
#define mp(i,a) make_pair(i,a)
#define pb(a) push_back(a)
#define bit(x,b) (x&(1LL<<b))
typedef long long int lli;
typedef pair <lli,lli> ii;
typedef pair <lli,ii> iii;
typedef vector <lli> vi;
void play() {
char a;
vi arr[25];
for (int i=1; i<=50; ++i) {
a=faceup(i);
arr[a-'A'].pb(i);
}
for(int i=0;i<25;++i)
{
faceup(arr[i][0]);
faceup(arr[i][1]);
}
return;
}
