/* -*- coding: utf-8 -*-
 *
 * 1729.cc:  No.1729 ～サンプルはちゃんと見て!～　16進数と8進数(1) - yukicoder
 */

#include<cstdio>
#include<cstring>
#include<algorithm>
 
using namespace std;

/* constant */

const int MAX_L = 200;

/* typedef */

/* global variables */

char s[MAX_L + 4];
int cs[8];

/* subroutines */

/* main */

int main() {
  scanf("%s", s);
  int l = strlen(s);

  for (int i = l - 1; i >= 0; i -= 3) {
    int x = 0;
    for (int d = 0; d < 3; d++)
      x |= ((i - d >= 0) ? s[i - d] - 'A' + 10 : 0) << (d * 4);
    //printf("%d ", x);

    while (x > 0) {
      cs[x & 7]++;
      x >>= 3;
    }
  }
  //putchar('\n');

  int maxc = 0;
  for (int i = 0; i < 8; i++) maxc = max(maxc, cs[i]);

  for (int i = 0, cont = 0; i < 8; i++)
    if (cs[i] == maxc) {
      if (cont) putchar(' ');
      printf("%d", i);
      cont = 1;
    }
  putchar('\n');
  return 0;
}