A

f = 1
res = [0]*int(input())
while(1):
    c = input()
    if(c == 'HELP'):
        break
    d = -1
    if (input()=='YES'):
        d = 1
        f = 0
    for i in list(map(int,c.split())):
        if(res[i-1] != -1):
            res[i-1] = d
for i in range(len(res)):
    if(res[i] == 1 or (f and res[i] == 0)):
        print(i+1,end=' ')