Palindromic String Checker

This problem requires you to determine whether a given string is a palindrome. A palindrome is a string that reads the same backward as forward when ignoring case, spaces, and punctuation.

You are to implement a solution that reads an input string from stdin and outputs True if the string is a palindrome and False otherwise. Be sure to ignore all non-alphanumeric characters and treat uppercase and lowercase letters as equal.

Mathematically, if the cleaned string is denoted as \( s \), then the palindrome condition is:

\( s = s^R \)

where \( s^R \) denotes the reverse of \( s \).

inputFormat

Input consists of a single line containing the string to be checked. The string may include spaces, punctuation, and letters in mixed case.

outputFormat

Output a single line: True if the input string is a palindrome (ignoring spaces, punctuation, and capitalization), or False otherwise.## sample

A man, a plan, a canal, Panama

True