#include <fstream>
#include <iostream>
#include <utility>


int main() {

	//std::ifstream inf("Text.txt");	std::cin.rdbuf(inf.rdbuf());
	std::pair<int, int> A(2, 8);
	std::pair<int, int> B(3, 9);
	std::pair<int, int> C(7, 9);

	int N = 0;
	std::cin >> N;

	std::pair<int, int> D;
	std::pair<int, int> E;

	for (int i = 0; i < N; i++) {
		std::cin >> D.first >> D.second;
		std::cin >> E.first >> E.second;
		
		if (A == D) {
			A = E;
		}
		if (B == D) {
			B = E;
		}
		if (C == D) {
			C = E;
		}
	}

	bool flg = false;
	if (A.first == 5 && A.second == 8) {
		if (B.first == 4 && B.second == 8) {
			if (C.first == 6 && C.second == 8) {
				flg = true;
			}
		}
	}

	if (flg) {
		std::cout << "YES" << std::endl;
	}
	else {
		std::cout << "NO" << std::endl;
	}

}