from collections import defaultdict, deque
from pickletools import read_decimalnl_long
import sys
readline=sys.stdin.readline
write=sys.stdout.write

def Base(N,card):
    assert N>=0
    assert card>=2
    base=[]
    while N:
        base.append(N%card)
        N//=card
    return base

N=readline().rstrip()[::-1]
le=len(N)
cnt=defaultdict(int)
for i in range((le+2)//3):
    s=0
    for j,n in enumerate(N[i*3:min(le,(i+1)*3)]):
        s+=(ord(n)-ord("A")+10)*16**j
    base=Base(s,8)
    if i!=(le+2)//3-1:
        base+=[0]*(3-len(base))
    for b in base:
        cnt[b]+=1
m=max(cnt.values())
ans_lst=[]
for ans in cnt.keys():
    if cnt[ans]==m:
        ans_lst.append(ans)
ans_lst.sort()
print(*ans_lst)