Problem Statement

You are given a string and your task is to swap cases. In other words, convert all lowercase letters to uppercase letters and vice versa.

For Example:

www.AmritaUniversity.com → WWW.aMRITAuNIVERSITY.COM Pythonist 3 → pYTHONIST 3 Input Format

A single line containing a string S.

Constraints

0<=len(S)<=1000

Output Format

Print the modified string S.

Sample Input 0

AmritaUniversity.com presents "Pythonist 3".

Sample Output 0

aMRITAuNIVERSITY.COM PRESENTS "pYTHONIST 3".