Swap case: uppercase → lowercase and lowercase → uppercase.

Difficulty: Easy

Phase: 5 · Strings

XP Reward: 10 XP

Topics: Strings, Easy

Supported Languages: Python, JavaScript, C, C++, Java

Problem Description

Swap case of each letter: uppercase to lowercase, and lowercase to uppercase. Input Format: Read input from standard input (stdin). Output Format: Print the result to standard output (stdout).

Constraints

-10^9 <= N <= 10^9

Examples

Example 1

Input: Hello World

Output: hELLO wORLD

Explanation: Sample execution for input Hello World