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
def rev(str):
    revstr=''
    for i in range(len(str)-1,-1,-1):
        revstr=revstr + str[i]
    return revstr
str=input("")
print(rev(str))