n=int(input())
x=[2,8]
y=[3,9]
z=[7,9]
for i in range(n):
    a,b,c,d=map(int,input().split())
    if [a,b]==x:
        x=[c,d]
    elif [a,b]==y:
        y=[c,d]
    elif [a,b]==z:
        z=[c,d]
print("YES" if x==[5,8] and y==[4,8] and z==[6,8] else "NO")