N = int(input())
koma = [(2,8),(3,9),(7,9)]
for i in range(N):
    x0,y0,x1,y1 = map(int,input().split())
    koma2 = []
    for j in range(3):
        if (x0,y0) == koma[j]:
            koma2.append((x1,y1))
        else:
            koma2.append(koma[j])
    koma = koma2
if koma == [(5,8),(4,8),(6,8)]:
    print('YES')
else:
    print('NO')