from collections import Counter
N = int(input(), 16)
S = oct(N)
# print(S)
C = Counter(list(str(S)[2:]))
ct = 0
ans = []
for i in range(8):
    if ct < C[str(i)]:
        ans = [i]
        ct = C[str(i)]
    elif ct == C[str(i)]:
        ans.append(i)
print(*ans)