n = int(input())

abc = [[2, 8], [3, 9], [7, 9]]
mtk = [[5, 8], [4, 8], [6, 8]]

for _ in range(n):
    x1, y1, x2, y2 = map(int, input().split())
    for j in range(3):
        if abc[j][0] == x1 and abc[j][1] == y1:
            abc[j][0], abc[j][1] = x2, y2

print('YES' if abc == mtk else 'NO')