S = input()[::-1]
l = len(S)
cnt = [0] * 8
for i in range(0, l, 3):
    T = S[i:i+3]
    T = T[::-1]
    n = int(T, 16)
    while n:
        cnt[n % 8] += 1
        n //= 8
max_ = max(cnt)
ans = []
for i, c in enumerate(cnt):
    if c == max_:
        ans.append(i)
print(*ans)