n = int(input())
S = [1]*10
for _ in range(n):
    a, b, c, d, r = input().split()
    a = int(a)
    b = int(b)
    c = int(c)
    d = int(d)
    if r == "YES":
        for i in range(1, 10):
            if i == a or i == b or i == c or i == d:
                continue
            S[i] = 0
    else:
        S[a] = 0
        S[b] = 0
        S[c] = 0
        S[d] = 0
for i in range(1, 10):
    if S[i]:
        print(i)