Shift Characters

You are given a string s that may contain alphabetic characters, digits, spaces, and punctuation. Your task is to shift every alphabetic character in s to the next character in the English alphabet. Specifically, 'z' should wrap around to 'a' and likewise, 'Z' should wrap around to 'A'. Non-alphabetic characters should remain unchanged.

Note: All input is read from stdin and output should be written to stdout.

Example

Input:  Zoo Keeper!
Output: App Lffqfs!

inputFormat

The input consists of a single line string s which may include spaces, digits, special symbols and alphabetic characters.

Read the input from stdin.

outputFormat

Output a single line string which is the result of shifting every alphabetic character in the input string to the next character in the alphabet with wrap-around for 'z'/ 'Z'.

Write the output to stdout.

Zoo Keeper!

App Lffqfs!