#include <iostream>
#include <utility>

using namespace std;
typedef pair<int, int> P;

int n;
P p[10][10];

int main(void)
{
	cin >> n;
	for(int i = 1; i <= 9; i++){
		for(int j = 1; j <= 9; j++){
			p[i][j] = make_pair(i, j);
		}
	}
	int sx, sy, tx, ty;
	for(int i = 0; i < n; i++){
		cin >> sx >> sy >> tx >> ty;
		swap(p[tx][ty], p[sx][sy]);
	}
	if(p[5][8] == make_pair(2, 8) && p[4][8] == make_pair(3, 9) && p[6][8] == make_pair(7, 9)) cout << "YES" << endl;
	else cout << "NO" << endl;
	
	return 0;
}