a,b,c = [2,8],[3,9],[7,9]
ag,bg,cg = [5,8],[4,8],[6,8]
p = [0]*4

n = int(input())
for i in range(n):
	p = list(map(int,input().split()))
	if a==p[:2]: a=p[2:]
	elif b==p[:2]: b=p[2:]
	elif c==p[:2]: c=p[2:]

print("YES" if a+b+c==ag+bg+cg else "NO")