#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define printVec(v) printf("{"); for (const auto& i : v) { std::cout << i << ", "; } printf("}\n");
#define degreeToRadian(deg) (((deg)/360)*2*M_PI)
#define radianTodegree(rad) (((rad)/2/M_PI)*360)
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
using namespace std;
using P = pair<int,int>;
using ll = long long;
const ll INF = 1LL<<60;
const int MOD = 1e9 + 7;
const int dx[4] = {1, 0, -1, 0};
const int dy[4] = {0, 1, 0, -1};

//cin.tie(0);ios::sync_with_stdio(false);
//cout << fixed << setprecision(15) << y << endl;
int main() {
  int n;
  cin >> n;

  vector<P> a(3);
  a[0].first = 2, a[0].second = 8;
  a[1].first = 3, a[1].second = 9;
  a[2].first = 7, a[2].second = 9;
  
  rep (i, n) {
    int x1, x2, y1, y2;
    cin >> x1 >> y1 >> x2 >> y2;
    rep (j, 3) {
      if (a[j].first == x1 && a[j].second == y1) {
	a[j].first = x2;
	a[j].second = y2;
      }
    }
  }

  bool ok = true;
  if (a[0].first != 5 || a[0].second != 8) ok = false;
  if (a[1].first != 4 || a[1].second != 8) ok = false;
  if (a[2].first != 6 || a[2].second != 8) ok = false;

  if (ok) {
    cout << "YES" << endl;
  } else {
    cout << "NO" << endl;
  }
  return 0;
}