#include <bits/stdc++.h>

using namespace std;

using i64 = long long;

void solve() {
    string s;
    cin >> s;
    vector<int>v;
    int n = s.size();
    for (int i = 0;i < s.size();i ++){
        if (i + 1 < n && s[i] == 'S' && s[i + 1] == 'S'){
            v.push_back(i);
        }
    }

    for (auto &c : s){
        c = tolower(c);
    }
    cout << s << "\n";
    for (int i = 0;i < v.size();i ++){
        string str = s.substr(0, v[i]) + 'B' + s.substr(v[i] + 2, n - v[i]);
        cout << str << "\n";
    }

}

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

    int T = 1;
    // cin >> T;
    while (T--) {
        solve();
    }
    return 0;
}