Given a string s, determine if it can be a palindrome after deleting exactly one character.

Input

Contains a string s (1 ≤ length(s) ≤ 106).

Output

Print yes, if after deleting exactly one character from string s, it turns to palindrome, otherwise print no.

If answer is yes, in the second line of output print the resulting palindrome string. If there are several solutions print any of them.