Competitions

# 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"