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

signed main(){
  int x1=2,y1=8,x2=3,y2=9,x3=7,y3=9;
  int n;cin>>n;
  while(n--){
    int x,y,u,v;cin>>x>>y>>u>>v;
    if(x==x1&&y==y1)x1=u,y1=v;
    if(x==x2&&y==y2)x2=u,y2=v;
    if(x==x3&&y==y3)x3=u,y3=v;
  }
  cout<<(x1==5&&y1==8&&x2==4&&y2==8&&x3==6&&y3==8?"YES":"NO")<<endl;
}