box = set()
for i in range(1,10):
    box.add(i)

N = int(input())
for i in range(N):
    A,B,C,D,R = map(str,input().split())
    if R=="NO":
        if int(A) in box:
            box.remove(int(A))
        if int(B) in box:
            box.remove(int(B))
        if int(C) in box:
            box.remove(int(C))
        if int(D) in box:
            box.remove(int(D))
    else:
        for n in range(1,10):
            if n !=int(A) and n !=int(B) and n !=int(C) and n !=int(D):
                if n in box:
                    box.remove(n)

print(*box)