#include <bits/stdc++.h>
using namespace std;
#define modulo 1000000007
#define mod(mod_x) ((((long long)mod_x+modulo))%modulo)
#define Inf 1000000000000


int main(){
	
	int N;
	cin>>N;
	
	map<pair<int,int>,int> S;
	S[make_pair(2,8)]=1;
	S[make_pair(3,9)]=2;
	S[make_pair(7,9)]=3;
	
	for(int i=0;i<N;i++){
		int x1,y1,x2,y2;
		cin>>x1>>y1>>x2>>y2;
		
		if(!S.count(make_pair(x1,y1)))continue;
		int k = S[make_pair(x1,y1)];
		S.erase(make_pair(x1,y1));
		S[make_pair(x2,y2)] = k;
	}
	if(S[make_pair(5,8)]==1&&S[make_pair(4,8)]==2&&S[make_pair(6,8)]==3){
		cout<<"YES"<<endl;
	}
	else{
		cout<<"NO"<<endl;
	}
	
	
	
	
	return 0;
}