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 Ruby (judge verdict: Wrong Answer)

puts '文字を入力してください。逆順出力します。　※半角英数字20文字以内'
str = gets.to_s
puts str.reverse