Swap Letter Case

Problem Description

Replace every uppercase letter in a string with the corresponding lowercase letter, and every lowercase letter with the corresponding uppercase letter.

Input Format

One line: the string to be transformed.

Output Format

One line: the transformed string (the string length is less than 300).

Sample Input

If so, you already have a Google Account. You can sign in on the right.

Sample Output

iF SO, YOU ALREADY HAVE A gOOGLE aCCOUNT. yOU CAN SIGN IN ON THE RIGHT.