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

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

    string S;
    cin >> S;

    vector<int> bin;
    for (char &c : S) {
        int d = c - 'A' + 10;
        while (d) {
            bin.push_back(d % 2);
            d /= 2;
        }
    }

    if (bin.size() % 3 != 0) {
        int n = 3 - bin.size() % 3;
        rep(i, n)
            bin.push_back(0);
    }

    vector<int> cnt(8);
    for (int i = 0; i < bin.size(); i += 3) {
        int cur = bin[i] + 2 * bin[i + 1] + 4 * bin[i + 2];
        cnt[cur]++;
    }

    int ma = 0;
    rep(i, 8) ma = max(ma, cnt[i]);

    rep(i, 8) {
        if (cnt[i] == ma) cout << i << " ";
    }
    cout << "\n";

    return 0;
}