Palindrome Checker: Ignoring Punctuation and Case

This problem requires you to determine whether a given string is a palindrome. A palindrome is a string that reads the same backwards as forwards. However, the twist is that you should ignore all non-alphanumeric characters and treat uppercase and lowercase letters the same.

Mathematically, if we denote the filtered string (only alphanumeric and in lowercase) as \(S\), the string is a palindrome if and only if \(S = S^R\), where \(S^R\) is the reverse of \(S\).

The input consists of a single line containing the string to check. The output should be either True or False depending on whether the string is a palindrome.

inputFormat

The input is provided via standard input and consists of a single line string \(S\). This string can include letters, numbers, spaces, and punctuation.

outputFormat

The output should be printed to standard output. Print True if the string is a palindrome (ignoring spaces, punctuation, and capitalization), and False otherwise.

## sample

racecar

True

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