Count Vowels in a Sentence

Given a sentence, your task is to count the number of vowels in it. Vowels include \(a, e, i, o, u\) (both lowercase and uppercase). Your solution should read the input from stdin and output the result to stdout.

inputFormat

The input consists of a single line containing a sentence.

outputFormat

Output a single integer representing the number of vowels in the input sentence.

This is an example.

6