#include <algorithm>
#include <iostream>
#include <utility>
#include <vector>
using namespace std;

int main() {
	int N;
	cin >> N;
	vector<pair<int, int>> a{ { 2, 8 }, { 3, 9 }, { 7, 9 } };
	for (int i = 0; i < N; ++i) {
		pair<int, int> x1y1, x2y2;
		cin >> x1y1.first >> x1y1.second >> x2y2.first >> x2y2.second;
		vector<pair<int, int>>::iterator b = find(a.begin(), a.end(), x1y1);
		if (a.end() != b) *b = x2y2;
	}
	if (a[0] == make_pair(5, 8) && a[1] == make_pair(4, 8) && a[2] == make_pair(6, 8)) cout << "YES";
	else cout << "NO";
}