N = int(input())
ls = [(2, 8), (3, 9), (7, 9)]

for i in range(N):
    a, b, c, d = map(int, input().split())
    for j in range(3):
        if ls[j] == (a, b):
            ls[j] == (c, d)
            
if ls == [(5, 8), (4, 8), (6, 8)]:
    print('YES')
else:
    print('NO')