#include "grader.h"
#include "memory.h"
#include <iostream>
#include <math.h>
#include <vector>
#include <string>
#include <algorithm>
#include <queue>
#include <stack>
#include <map>
#include <cstring>
#include <iomanip>
#include <set>
#include <bitset>
using namespace std;
#define f first
#define s second
void play() {
vector<pair<int,int>> ar(25,{-1,-1});
for(int i = 1;i <= 50;i++){
char a = faceup(i);
if(ar[a-'A'].f == -1) ar[a-'A'].f = i;
else ar[a-'A'].s = i;
//cout << ar[a-'A'].f << " " << ar[a-'A'].s << endl;
}
for(int i{};i < 25;i++){
faceup(ar[i].f);
faceup(ar[i].s);
}
}
