#coding=UTF-8

N=int(input())

R=list(range(0,N,1))

taro=list(range(0,N,1))
for idx in range(0,N,1):
    mojir=input()
    hyo=mojir.split(" ")
    A=int(hyo[0])
    B=int(hyo[1])
    C=int(hyo[2])
    D=int(hyo[3])
    taro[idx]=(A,B,C,D)
    R[idx]=hyo[4]
    

guess=list(range(0,10,1))
for idx in range(0,10,1):
    guess[idx]=True

hicacu=list(range(0,10,1))
for idx in range(0,N,1):
    if R[idx]=="NO":
        for idy in range(0,10,1):
            if idy in taro[idx]:
                hicacu[idy]=False
            else:
                hicacu[idy]=True
    else:
        for idy in range(0,10,1):
            if idy in taro[idx]:
                hicacu[idy]=True
            else:
                hicacu[idy]=False
    for idy in range(0,10,1):
        guess[idy]=guess[idy] and hicacu[idy]


for idy in range(0,10,1):
    if guess[idy]==True:
        print(idy)