#include <cstdio>
#define rep( i, n, m ) for(int i = ( n ); i < ( m ); i++)


int main( void ){
	int n;
	if (!scanf( "%d", &n ))
		return 0;
	int array[ 3 ][ 2 ] = {{2, 8},
		{3, 9},
		{7, 9}};
	const int array_goal[ 3 ][ 2 ] = {{5, 8},
					{4, 8},
					{6, 8}};
	rep( i, 0, n ){
		int x_pre, y_pre, x, y;
		if (!scanf( "%d%d%d%d", &x_pre, &y_pre, &x, &y ))
			return 0;
		rep( j, 0, 3 ){
			if(array[ j ][ 0 ] == x_pre && array[ j ][ 1 ] == y_pre){
				array[ j ][ 0 ] = x;
				array[ j ][ 1 ] = y;
				break;
			}
		}
	}
	rep(i,0,3){
		rep(j,0,2){
			if (array[i][j] != array_goal[i][j]){
				printf("NO\n");
				return 0;
			}
		}
	}
	printf("YES\n");
	return 0;
}