Score : 100 points
You are given a string S of length 2 or 3 consisting of lowercase English letters. If the length of the string is 2, print it as is; if the length is 3, print the string after reversing it.
Input is given from Standard Input in the following format:
S
If the length of S is 2, print S as is; if the length is 3, print S after reversing it.
abc
cba
As the length of S is 3, we print it after reversing it.
ac
ac
As the length of S is 2, we print it as is.