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.

Example

Input

w32nimda


Output

admin23w
import sys
str_sequence = input()
if len(str_sequence) > 20:
    sys.exit(1)
print(str_sequence[::-1])