Count Vowels

Given an input string, count the total number of vowels. The vowels are defined as \(a,e,i,o,u\) (both uppercase and lowercase). Any other characters including digits, punctuation, and spaces should be ignored.

The program must read from stdin and output the result (the count of vowels) to stdout.

inputFormat

The input consists of a single line containing a string s (which can be empty). This string may include letters, digits, whitespace, and special characters.

outputFormat

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

hello

2