Swap the Case of a Sentence

Easy ⏱ 8 min 86% acceptance ★★★★☆ 4.4

Write swap_case(s) that flips every uppercase letter in s to lowercase and every lowercase letter to uppercase, leaving digits, punctuation and spaces untouched.

Examples

Example 1

Input

s = 'Hello World'

Output

'hELLO wORLD'

Explanation

Each cased letter flips; the space is unaffected.

Example 2

Input

s = 'Py3.12 Rocks!'

Output

'pY3.12 rOCKS!'

Explanation

Digits and punctuation pass through unchanged.

Constraints

0 <= len(s) <= 10^4

Topics

StringsCase Conversion

Companies

MicrosoftAccenture

Hints

Hint 1

Python strings have a built-in method for exactly this.

Hint 2

Check `str.swapcase()`.

← Palindrome Check via Slicing Capitalize Every Word (Title Case) →

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