#include <string>
#include <vector>
#include <list>
#include <cmath>
#include <algorithm>
#include <map>
#include <set>
#include <iostream>
#include <cstdio>
#include <cstdlib>
using namespace std;

class DevuAndGame {
  public:
    string canWin(vector <int> nextLevel);
};

string DevuAndGame::canWin(vector <int> nextLevel)
{
  return "";
}