#include <bits/stdc++.h>
//#include <atcoder/all>
using namespace std;
//using namespace atcoder;
//using mint = modint1000000007;
//const int mod = 1000000007;
//using mint = modint998244353;
//const int mod = 998244353;
//const int INF = 1e9;
//const long long LINF = 1e18;
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define rep2(i,l,r)for(int i=(l);i<(r);++i)
#define rrep(i, n) for (int i = (n-1); i >= 0; --i)
#define rrep2(i,l,r)for(int i=(r-1);i>=(l);--i)
#define all(x) (x).begin(),(x).end()
#define allR(x) (x).rbegin(),(x).rend()
#define endl "\n"
#define P pair<int,int>
template<typename A, typename B> inline bool chmax(A & a, const B & b) { if (a < b) { a = b; return true; } return false; }
template<typename A, typename B> inline bool chmin(A & a, const B & b) { if (a > b) { a = b; return true; } return false; }

int main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	int n; cin >> n;
	vector a(10, vector<int>(10));
	a[2][8] = 1;
	a[3][9] = 2;
	a[7][9] = 3;
	rep(i, n) {
		int x1, y1, x2, y2; cin >> x1 >> y1 >> x2 >> y2;
		swap(a[x1][y1], a[x2][y2]);
	}
	if ((1 == a[5][8])&&(2 == a[4][8])&&(3 == a[6][8]))cout << "YES" << endl;
	else cout << "NO" << endl;
	return 0;
}