#include <bits/stdc++.h>

#define FOR(i, a, b) for(ll i = (a); i < (b); ++i)
#define REP(i, a) FOR(i, 0, a)

using namespace std;
using ll = long long;

pair<ll, string> solve_w_period(string S, ll period) {
    ll n = S.length(), ans = 0;
    vector<ll> char_cnt_vec;
    bool flg = (n / period * 2 < 13);
    if (!flg) {
        char_cnt_vec.resize('Z' - 'A' + 1);
    }
    REP(i, period) {
        map<char, ll> char_cnt;
        pair<char, ll> max_cnt;
        if (flg) {
            REP(j, n / period) {
                ++char_cnt[S[i + period * j]];
            }
            max_cnt = *max_element(char_cnt.begin(), char_cnt.end(),
                                     [](auto a, auto b) { return a.second < b.second; });
        }else{
            REP(j, n / period) {
                ++char_cnt_vec[S[i + period * j] - 'A'];
            }
            ll max_ele = max_element(char_cnt_vec.begin(), char_cnt_vec.end())
                           - char_cnt_vec.begin();
            max_cnt.first = 'A' + max_ele;
            max_cnt.second = char_cnt_vec[max_ele];
            if (n / period < 26){
                REP(j, n / period) char_cnt_vec[S[i + period * j] - 'A'] = 0;
            }else{
                fill(char_cnt_vec.begin(), char_cnt_vec.end(), 0);
            }
        }
        ans += n / period - max_cnt.second;
        REP(j, n / period) {
            S[i + period * j] = max_cnt.first;
        }
    }
    return make_pair(ans, S);
}

string solve(const string &S) {
    ll n = S.length();

    auto ans = make_pair(n, S);
    for (ll period = 1; period * period <= n; ++period) {
        if (n % period == 0) {
             auto temp_ans = solve_w_period(S, period);
             if (temp_ans.first < ans.first) {
                ans = temp_ans;
             }
             if (period != 1) {
                temp_ans = solve_w_period(S, n / period);
                if (temp_ans.first < ans.first) {
                    ans = temp_ans;
                }
             }
        }
    }
    return ans.second;
}

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    string S;
    cin >> S;
    cout << solve(S) << endl;
}