N=int(raw_input())
S = set(range(10))
for i in range(N):
   A_,B_,C_,D_,R=raw_input().split()
   A=int(A_)
   B=int(B_)
   C=int(C_)
   D=int(D_)
   T=set([A,B,C,D])
   if R=="YES":
      S &= T
   else:
      S-=T
for i in S:
   print i