In Every Generation...

1000ms

262144K

Description:

In every generation there is a Chosen One. She alone will stand against the vampires, the demons, and the forces of darkness. She is the Slayer. — Joss Whedon

Input:

A string $$$s$$$ ($$$3 \le |s| \le 7$$$) consisting of lowercase English letters.

Output:

A single string. If there is no answer, print "none" (without the quotes).

Sample Input:

tourist

Sample Output:

ooggqjx

Informação

Provedor Codeforces

Código CF1663F