#include <bits/stdc++.h>
#define rep(i, l, r) for (int i = (l); i < (r); i++)
using namespace std;

typedef long long ll;

int main() {
    map<char, int> mp;
    rep(i, 0, 10) mp['0' + i] = i;
    rep(i, 0, 6) mp['A' + i] = 10 + i;
    string N;
    cin >> N;
    while (N.size() % 3) N = "0" + N;
    //cout << N << endl;
    vector<int> c(8, 0);
    rep(i, 0, N.size() / 3) {
        int x = 0;
        rep(j, 0, 3) {
            x *= 16;
            x += mp[N[i * 3 + j]];
        }
        rep(j, 0, 4) {
            if (x == 0 && i == 0) break;
            c[x % 8]++;
            x /= 8;
        }
    }
    int cmax = 0;
    rep(i, 0, 8) cmax = max(cmax, c[i]);
    rep(i, 0, 8) if (c[i] == cmax) cout << i << " ";
    cout << endl;
}