s = input()
n = len(s)
counter = 0
val = 0
multi = 1
d = {"A":10,"B":11,"C":12,"D":13,"E":14,"F":15}
appear = [0 for i in range(8)]
for i in reversed(range(n)):
    if counter == 3:
        kari = val
        for j in range(4):
            appear[kari%8] += 1
            kari = kari // 8
        counter = 0
        multi = 1
        val = 0
    val += d[s[i]] * multi
    multi *= 16
    counter += 1

while val > 0:
    appear[val%8] += 1
    val = val // 8

maxval = max(appear)
ans = []
for i in range(8):
    if appear[i] == maxval:
        ans.append(str(i))
L = " ".join(ans)
print(L)