#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  cin.tie(nullptr)->sync_with_stdio(false);
  string s;
  cin >> s;
  if (!s.contains('C')) {
    sort(s.begin(), s.end());
    cout << s << '\n';
  }
  else {
    sort(s.begin(), s.end(), [](char a, char b) {
      auto tonum = [](char c) {
        if (c == 'T') return 0;
        if (c == 'C') return 1;
        if (c == 'P') return 2;
        assert(false);
      };
      return tonum(a) < tonum(b);
    });
    cout << s << '\n';
  }
  return 0;
}