n = int(input())
a, b, c = [2, 8], [3, 9], [7, 9]
for _ in "_"*n:
    x1, y1, x2, y2 = map(int, input().split())
    if a[0] == x1 and a[1] == y1:
        a = [x2, y2]
    elif b[0] == x1 and b[1] == y1:
        b = [x2, y2]
    elif c[0] == x1 and c[1] == y1:
        c = [x2, y2]
print("YNEOS"[a!=[5, 8] or b!=[4, 8] or c!=[6, 8]::2])