#include <bits/stdc++.h>
using namespace std;

int main() {
	// your code goes here
	map < int, int > mp;
	mp[1] = 2;
	mp[2] = 3;
	map < int, int >::iterator it = mp.lower_bound(2);
	cout << it - mp.begin() << endl;
	return 0;
}