#include <bits/stdc++.h>

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

using namespace std;

vector<int> get_p_factors(int n) {
    vector<int> p_factors;
    for (int i = 2; i * i <= n; ++i) {
        if (n % i == 0) {
            p_factors.push_back(i);
            while (n % i == 0) {
                n /= i;
            }
        }
    }
    if (n != 1) {
        p_factors.push_back(n);
    }
    return p_factors;
}

int solve_w_period(string &S, int period, bool replace_S = false) {
    int n = S.length(), ans = 0;
    vector<int> char_cnt_vec;
    bool flg = (n / period * 2 < 13);
    if (!flg) {
        char_cnt_vec.resize('Z' - 'A' + 1);
    }
    REP(i, period) {
        map<char, int> char_cnt;
        pair<char, int> 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'];
            }
            int 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;
        if (replace_S) {
            REP(j, n / period) {
                S[i + period * j] = max_cnt.first;
            }
        }
    }
    return ans;
}

void solve(string &S) {
    int n = S.length();
    vector<int> p_factors = get_p_factors(n);

    int ans = n, best_period = 1;
    for (int p_factor : p_factors) {
        int period = n / p_factor;
        int temp_ans = solve_w_period(S, period);
        if (temp_ans < ans) {
            ans = temp_ans;
            best_period = period;
        }
    }
    solve_w_period(S, best_period, true);
}

int main() {
    string S;
    cin >> S;
    solve(S);
    cout << S << endl;
}