#include <iostream>
#include <vector>
using namespace std;
int main(){
	vector<vector<char>> c(9, vector<char>(9, '.'));
	c[1][7] = 'A';
	c[2][8] = 'B';
	c[6][8] = 'C';
	int N;
	cin >> N;
	for (int i = 0; i < N; i++){
		int x1, y1, x2, y2;
		cin >> x1 >> y1 >> x2 >> y2;
		x1--;
		y1--;
		x2--;
		y2--;
		swap(c[x1][y1], c[x2][y2]);
	}
	if (c[4][7] == 'A' && c[3][7] == 'B' && c[5][7] == 'C'){
		cout << "YES" << endl;
	} else {
		cout << "NO" << endl;
	}
}