using System.Collections.Generic;
using System.Linq;
using System;

public class Hello
{
    static void Main()
    {
        var s = Console.ReadLine().Trim();
        getAns(s);
    }
    static void getAns(string s)
    {
        var ss = "";
        foreach (var x in s)
        {
            ss += Convert.ToString(Convert.ToInt32(x.ToString(), 16), 2);
        }
        var ans = new int[8];
        var ssL = ss.Length;
        var sub = ssL % 3;
        var w1 = ss.Substring(0, sub);
        if (sub != 0) ans[Convert.ToInt32(w1, 2)]++;
        var p = sub;
        while (p < ssL)
        {
            var ww = ss.Substring(p, 3);
            ans[Convert.ToInt32(ww, 2)]++;
            p += 3;
        }
        var res = new List<int>();
        var ansmax = ans.Max();
        for (int i = 0; i < 8; i++) if (ans[i] == ansmax) res.Add(i);
        Console.WriteLine(string.Join(" ", res));
    }
}