#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for(int (i) = 0; (i) < (n); (i)++)
#define repe(i, n) for(i = 0; i <= (n); i++)
typedef long long ll;

int main()
{
    vector<vector<int>> b(10, vector<int>(10));
    b[2][8] = 1;
    b[3][9] = 2;
    b[7][9] = 3;
    int n;
    int x, y;
    cin >> n;
    rep(i, n){
        cin >> x >> y;
        int tmp = b[x][y];
        b[x][y] = -1;
        cin >> x >> y;
        b[x][y] = tmp;
    }
    if(b[5][8] == 1){
        if(b[4][8] == 2){
            if(b[6][8] == 3){
                cout << "YES" << endl;
                return 0;
            }
        }
    }
    cout << "NO" << endl;
    return 0;
}