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

class Singing {
  public:
    int solve(int N, int low, int high, vector <int> pitch);
};

int Singing::solve(int N, int low, int high, vector <int> pitch)
{
  int i;
}