N = int(input())
piece_pos =[(2,8),(3,9),(7,9)]
muteki_gakoi = [(5,8),(4,8),(6,8)]
for _ in range(N):
    x0,y0,x1,y1=map(int,input().split())
    if (x0,y0) in piece_pos:
        i = piece_pos.index((x0,y0))
        piece_pos[i] = (x1,y1)
if piece_pos == muteki_gakoi:print("YES")
else:print("NO")