First Vowel Finder

Given a string s, your task is to find and output the first vowel that appears in the string. For this problem, consider the set of vowels as \( V = \{a, e, i, o, u\} \). You need to iterate over the characters of s and print the first character that belongs to \( V \). If no vowel is present in the string, output "None".

Note: The input will contain only lowercase letters.

inputFormat

The input consists of a single line containing a non-empty string s.

outputFormat

Output the first vowel found in the string. If there is no vowel, output "None".

hello

e