#include <string>
#include <vector>
#include <map>
#include <iostream>
#include <cstdio>
#include <cstdlib>
using namespace std;

class BearSong
{
    public:
        int countRareNotes(vector <int> notes);
};

int BearSong::countRareNotes(vector <int> N)
{
    return 0;
}