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: WA: Presentation Error)

str = gets
ary = []
  for i in 0..(str.length-1)
    ary.unshift(str[i])
  end
puts ary.join