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.HackerRank.com → wWW.hACKERrANK.COM
Pythonist 2 → pYTHONIST 2
Input Format
A single line containing a string .
Constraints
Output Format
Print the modified string .
Sample Input 0
HackerRank.com presents "Pythonist 2".

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