N = int(input().strip())

lst = [1 for i in range(10)]

for i in range(N):
  tmp = input().strip().split()
  ABCD = [int(i) for i in tmp[:4]]
  R = tmp[-1]
  
  if R == 'YES':
    for i in range(10):
      if not(i in ABCD):
        lst[i] = 0
  else:
    for i in ABCD:
      lst[i] = 0

for i in range(len(lst)):
  if lst[i] == 1:
    print(i)