#include <iostream>
#include <list>
#include <vector>
#include <string>
#include <stdio.h>
#include <stdint.h>
#include <iomanip>
using namespace std;

using uint = unsigned int;
using ll = long long;

#define CIN( LL , A ) LL A; cin >> A 
#define GETLINE( A ) string A; getline( cin , A ) 
#define FOR_ITR( ARRAY , ITR , END ) for( auto ITR = ARRAY .begin() , END = ARRAY .end() ; ITR != END ; ITR ++ ) 

int main()
{

  CIN( ll , N );
  ll C[10][10] = {};
  C[2][8] = 1;
  C[3][9] = 2;
  C[7][9] = 3;
  ll x;
  ll y;

  for( ll i = 0 ; i < N ; i++ ){

    cin >> x >> y;
    ll& c = C[x][y];
    cin >> x >> y;

    if( c != 0 ){

      C[x][y] = c;
      c = 0;

    }
  
  }

  string answer;

  if( C[5][8] == 1 && C[4][8] == 2 && C[6][8] == 3 ){

    answer = "YES";

  } else {

    answer = "NO";

  }
  
  cout << answer << endl;
  return 0;

}