def atoi(a):
    return ord("A") - ord(a) + 10
    
ans = 0
h = 1
n = input()
for a in n[::-1]:
    ans += h * atoi(a)
    h *= 16

cnt = [0] * 10
while ans > 0:
    ans, v = divmod(ans, 10)
    cnt[v] += 1

answer = []
v = max(cnt)
for i in range(10):
    if cnt[i] == v:
        answer.append(i)
print(*ans)