#include <iostream>
#include <string>
#include <vector>
#include <deque>
#include <queue>
#include <algorithm>
#include <set>
#include <map>
#define vv(a, b, c, d) vector<vector<d> >(a, vector<d>(b, c))
#define vvi std::vector<std::vector<int> >
#define vvl std::vector<std::vector<ll> >
#define MODs 1000000007;
typedef long long int ll;
using namespace std;

int main(int argc, char const *argv[]) {
  int N, xb, yb, xa, ya;
  pair<int, int> A{2, 8}, B{3,9}, C{7,9};
  std::cin >> N;
  for(int i=0;i<N;i++) {
    std::cin >> xb >> yb >> xa >> ya;
    if(xb==A.first&&yb==A.second) A.first = xa, A.second=ya;
    if(xb==B.first&&yb==B.second) B.first = xa, B.second=ya;
    if(xb==C.first&&yb==C.second) C.first = xa, C.second=ya;
  }
  if(A.first==5&&A.second==8&&B.first==4&&B.second==8&&C.first==6&&C.second==8) std::cout << "YES" << '\n';
  else std::cout << "NO" << '\n';
  return 0;
}