Count Palindromic Words

You are given a string s containing one or more words separated by spaces. Your task is to count how many of these words are palindromic.

A word is considered a palindrome if it reads the same forwards and backwards. Mathematically, a word w is a palindrome if \(w = \text{reverse}(w)\). Note that the comparison is case sensitive: for example, madam is a palindrome whereas Hello is not.

Print the total number of palindromic words found in the input string.

inputFormat

The input consists of a single line containing the string s.

Read the input from stdin.

outputFormat

Output a single integer representing the count of palindromic words in the input string.

Write your output to stdout.

madam arora teaches malayalam

3