def read_set():
    inputs = raw_input().strip().split(" ")
    xs = []
    for i in range(4):
        xs.append(int(inputs[i]))
    if inputs[4] == "NO":
        xs = set(range(10)) - set(xs)
    return set(xs)

N = input()
ans = set(range(10))
for i in range(N):
    ans &= read_set()
for x in ans:
    print(x)