from collections import defaultdict

x = int(input().rstrip(), 16)
o = format(x, 'o')

d = defaultdict(int)
for c in str(o):
    d[c] += 1

s = sorted(d.items(), key=lambda x: x[1], reverse=True)

m = max(s, key=lambda x: x[1])[1]

r = []
for v in s:
    if v[1] == m:
        r.append(int(v[0]))

r.sort()
print(*r)