Count Palindromic Words

You are given a single line containing a series of words separated by spaces. Your task is to count how many of these words are palindromes. A word is considered a palindrome if it reads the same backwards and forwards, ignoring case. For example, the word "Madam" is a palindrome because, when converted to lowercase, it becomes "madam", which reads the same backward.

Note: All words are separated by whitespace, and the checking is case-insensitive.

Examples:

• Input: madam racecar noon Output: 3
• Input: Hello world Output: 0

Your solution should read input from stdin and output the result to stdout.

inputFormat

The input consists of a single line containing a sentence. The sentence contains words separated by spaces.

Input is read from standard input (stdin).

outputFormat

The output should be a single integer representing the number of palindromic words in the input sentence. This should be printed to standard output (stdout).

madam racecar noon

3