#include<bits/stdc++.h>
using namespace std;
using Int = long long;
template<typename T1,typename T2> inline void chmin(T1 &a,T2 b){if(a>b) a=b;}
template<typename T1,typename T2> inline void chmax(T1 &a,T2 b){if(a<b) a=b;}

//INSERT ABOVE HERE
signed main(){
  int n;
  cin>>n;
  vector<string> vs(11,string(11,'#'));
  vs[2][8]='A';
  vs[3][9]='B';
  vs[7][9]='C';

  for(int i=0;i<n;i++){
    int x1,y1,x2,y2;
    cin>>x1>>y1>>x2>>y2;
    swap(vs[x1][y1],vs[x2][y2]);
  }

  vector<string> ws(11,string(11,'#'));
  ws[5][8]='A';
  ws[4][8]='B';
  ws[6][8]='C';

  cout<<(vs==ws?"YES":"NO")<<endl;
  return 0;
}