Print how many words start with a vowel in a sentence.

Difficulty: Medium

Phase: 5 · Strings

XP Reward: 20 XP

Topics: Strings, Medium

Supported Languages: Python, JavaScript, C, C++, Java

Problem Description

Given a sentence, count how many words start with a vowel (case-insensitive). Input Format: Read input from standard input (stdin). Output Format: Print the result to standard output (stdout).

Constraints

-10^9 <= N <= 10^9

Examples

Example 1

Input: An apple a day keeps the doctor away

Output: 4

Explanation: Sample execution for input An apple a day keeps the doctor away