n = int(input())
K = [(2, 8), (3, 9), (7, 9)]
for _ in range(n):
    a, b, c, d = map(int, input().split())
    if (a, b) in K:
        i = K.index((a, b))
        K[i] = (c, d)

ans = K[0] == (5, 8) and K[1] == (4, 8) and K[2] == (6, 8)
if ans:
    print("YES")
else:
    print("NO")