蓝桥杯2022真题训练1

import java.util.Arrays;
import java.util.Scanner;

public class T1 {
    public static void main(String[] args) {
      Scanner input = new Scanner(System.in);
      String m= input.next();
      char[]n=m.toCharArray();
        Arrays.sort(n);
        for (char c : n) {
            System.out.print(c);
        }

    }
}