import sequtils, strutils, unicode

var n = readLine stdin
n = n.reversed
var s = ""

while n.len > 3:
  var h = n[0 .. 2]
  h = h.reversed
  s.add h.parseHexInt.toOct 4
  n = n[3 .. ^1]

n = n.reversed
s.add n.parseHexInt.toOct 4

var cnt: array[10, int]
for v in s:
  cnt[parseInt $v].inc

let maxV = max cnt
var ans: seq[int]
for i in 0 .. 9:
  if cnt[i] == maxV: ans.add i

echo ans.join " "