#include <bits/stdc++.h>
using namespace std;

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

    string s; cin >> s;
    sort(s.begin(),s.end());
    for(auto &c : s){
        if(c == 'C') continue;
        if(c == 'P') continue;
        if(c == 'T') continue;
        assert(false);
    }
    cout << s << endl;
}