#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); i++)
using namespace std;
typedef long long ll;

int main(){
    cin.tie(0);
    ios::sync_with_stdio(0);

    string s; cin >> s;
    // to 2
    string t = "";
    for(char c : s) {
        int n = (isdigit(c) ? c - '0' : c - 'A' + 10);
        for(int i = 3; i >= 0; i--) t += (n & (1 << i) ? '1' : '0');
    }

    // count in 8
    while(int(t.size()) % 3 != 0) t = '0' + t;
    map<string,int> mp;
    for(int i = 0; i < int(t.size()); i += 3) mp[t.substr(i, 3)]++;
    int ma = 0;
    for(auto e : mp) ma = max(ma, e.second);
    for(auto e : mp) if(ma == e.second) {
        int ans = 0;
        rep(i,3) if(e.first[2 - i] == '1') ans |= (1 << i);
        cout << ans << " ";
    } cout << endl;
}