#include <bits/stdc++.h>
using namespace std;
constexpr int n = 10;

int main() {
    int q;
    cin >> q;
    vector<vector<int>> v(n, vector<int>(n, 0));
    v[2][8] = 1; v[3][9] = 2; v[7][9] = 3;
    
    while (q--) {
        int a, b, c, d;
        cin >> a >> b >> c >> d;
        swap(v[a][b], v[c][d]);
    }
    
    if (v[5][8] == 1 and v[4][8] == 2 and v[6][8] == 3) {
        cout << "YES" << endl;
    } else {
        cout << "NO" << endl;
    }
    return 0;
}