Count Lowercase Vowels

Given a string S, count the number of lowercase vowels in it. The vowels to be counted are given by the set \(\{a, e, i, o, u\}\). Uppercase vowels or other characters are not counted.

Your task is to write a program that reads the string from standard input and prints the count of vowels to standard output.

inputFormat

The input consists of a single line containing a string S. The string may include spaces, punctuation, and special characters.

outputFormat

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

hello

2