#define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;

int main() {
  int N; cin >> N;
  vector<vector<int>> X(3, vector<int>(2));
  X[0][0] = 2, X[0][1] = 8;
  X[1][0] = 3, X[1][1] = 9;
  X[2][0] = 7, X[2][1] = 9;
  for(int i = 0; i < N; i++){
    int X1, Y1, X2, Y2; cin >> X1 >> Y1 >> X2 >> Y2;
    for(int j = 0; j < 3; j++){
      if(X[j][0] == X1 and X[j][1] == Y1){
        X[j][0] = X2;
        X[j][1] = Y2;
      }
    }
  }
  if(X[0][0] == 5 and X[0][1] == 8 and X[1][0] == 4 and X[1][1] == 8 and X[2][0] == 6 and X[2][1] == 8) cout << "YES" << endl;
  else cout << "NO" << endl;
}