Problem:
Reverse Sequence

Write a program which reverses a given string str.

Input

str (the size of str ≤ 20) is given in a line.

Output

Print the reversed str in a line.

Sample Input

w32nimda

Output for the Sample Input

admin23w

Solution in PHP (judge verdict: Wrong Answer)

<?php
fscanf(STDIN,"%s",$a);
echo $a, PHP_EOL;
for($i=(strlen($a)-1);$i>-1;$i--){
    print substr($a, $i, 1);
}