N = int(input())
s = [True] * 10

for i in range(N):
    x = input().split()
    xx = list(map(int, x[0:4]))
    for j in range(10):
        if (j in xx) ^ (x[-1] == 'YES'):
            s[j] = False
for i in range(10):
    if s[i]:
        print(i)