This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "grader.h"
#include "memory.h"
#include<bits/stdc++.h>
using namespace std;
void play()
{
    map<char, vector<int>> mp;
    for (int i = 1; i <= 50; i++)
        mp[faceup(i)].push_back(i);
    for (auto p : mp)
        faceup(p.second[0]), faceup(p.second[1]);
}
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