import java.util.*;
public class Main {
public static String swap(String str, int i, int j){
StringBuilder sb = new StringBuilder(str);
sb.setCharAt(i, str.charAt(j));
sb.setCharAt(j, str.charAt(i));
return sb.toString();
}
public static void rec(String str, int s, String org){
if(s==str.length()){
if(str.compareTo(org)>0){
System.out.println(str);
return;
}
else
return;
}
for(int j=s;j<str.length();j++){
str=swap(str,s,j);
rec(str,s+1,org);
}
}
public static void main(String args[]) {
// Your Code Here
Scanner sc=new Scanner(System.in);
String str=sc.next();
int len=str.length();
String org=str;
rec(str,0,org);
}
}