eolymp
Problems

Ordering

Ordering

A string of lowercase Latin letters is given. Print all its letters in alphabetical order (in ascending order of ASCII codes).

Input

One line consisting of no more than 200 lowercase Latin letters.

Output

Print all letters of the string in alphabetical order.

Time limit 1 second
Memory limit 128 MiB
Input example #1
abrakadabra
Output example #1
aaaaabbdkrr
Author Matviychuk Sergiy Volodymyrovych
Source "ABC programming"