S = list(input())
tmp = []
A = '1010'
B = '1011'
C = '1100'
D = '1101'
E = '1110'
F = '1111'
for s in S:
	if s == 'A':
		tmp.append(A)
	elif s == 'B':
		tmp.append(B)	
	elif s == 'C':
		tmp.append(C)	
	elif s == 'D':
		tmp.append(D)	
	elif s == 'E':
		tmp.append(E)	
	elif s == 'F':
		tmp.append(F)	
tmp = ''.join(tmp)
if len(tmp)%3 == 1:
	tmp = '00' + tmp
elif len(tmp)%3 == 2:
	tmp = '0' + tmp

vec = [tmp[i: i+3] for i in range(0, len(tmp), 3)]
# print(tmp)
# print(vec)

ans = []
for v in vec:
	if v == '000':
		ans.append('0')
	elif v == '001':
		ans.append('1')
	elif v == '010':
		ans.append('2')
	elif v == '011':
		ans.append('3')
	elif v == '100':
		ans.append('4')
	elif v == '101':
		ans.append('5')
	elif v == '110':
		ans.append('6')
	elif v == '111':
		ans.append('7')
ans = str(int(''.join(ans)))
# print(ans)

from collections import defaultdict
d = defaultdict(int)

for a in ans:
    d[a] += 1

# print(d)
max_k_list = [kv[0] for kv in d.items() if kv[1] == max(d.values())]
print((' '.join(sorted(max_k_list))))