#include <bits/stdc++.h>

using namespace std;

bool thuong(char a)
{
    return ('a' <= a && a <= 'z');
}

bool cmp(char a, char b)
{
    return (tolower(a) > tolower(b)) || (tolower(a) == tolower(b) && !thuong(a) && thuong(b));
}

int main()
{
    string s;
    cin >> s;
    sort(s.begin(), s.end(), cmp);
    cout << s;
}

\begin{array}{c} \color{#db1616}{\texttt{#Khoadang09}} \end{array}

#include <bits/stdc++.h>
using namespace std;
bool comp(char a, char b){
    if (islower(a) and isupper(b)) return true;
    if ((tolower(a) == tolower(b)) and (isupper(a) and islower(b))) return true;
    return a > b;
}

int main() {
    string s; cin >> s;
    sort(s.begin(), s.end(), comp);
    cout << s << endl;
    return 0;
}