Shift Characters Problem

Given a string, shift every alphabetical character by 2 positions forward in the alphabet, wrapping around if necessary. Non-alphabetical characters remain unchanged. The operation is case-sensitive.

For a character \( c \), the transformation can be expressed in LaTeX as:

\( new\_char = ((c - base + 2) \mod 26) + base \)

where \( base \) is \( 'a' \) for lowercase letters and \( 'A' \) for uppercase letters.

For example, the input "abcXYZ" would produce "cdeZAB".

inputFormat

The input consists of a single line containing a non-empty string.

outputFormat

Output the transformed string to stdout.

abcXYZ

cdeZAB