import java.util.*;
import java.io.*;
public class Main{
public static void main(String[] args) throws Exception{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
PrintWriter out=new PrintWriter(new OutputStreamWriter(System.out));
String str=br.readLine();
char[] ch=str.toCharArray();
Arrays.sort(ch);
String res=new String(ch);
out.println(res);
out.flush();
}
}
import java.io.*;
public class Main{
public static void main(String[] args) throws Exception{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
PrintWriter out=new PrintWriter(new OutputStreamWriter(System.out));
String str=br.readLine();
char[] ch=str.toCharArray();
Arrays.sort(ch);
String res=new String(ch);
out.println(res);
out.flush();
}
}

京公网安备 11010502036488号