Reverse a string

Print the string reversed. Try it without a built-in reverse function.

Reported in: Tech Mahindra, LTIMindtree, Cognizant GenC (memory-based)

Input

One line: the string.

Output

The reversed string.

Constraints

1 ≤ length ≤ 10^5.

Example 1

Input:
Osmania

Output:
ainamsO

Example 2

Input:
a b c

Output:
c b a

Hint: Swap characters from both ends, or build the result from the last character backwards.

All coding practice