use std::io::stdin; fn main() { let mut line = String::new(); loop { line.clear(); stdin().read_line(&mut line).unwrap(); let s = line.chars().collect::>(); if s[0] == '#' { break; } let cnt = s .iter() .map(|x| x.to_ascii_lowercase()) .filter(|x| match x { 'a' | 'e' | 'i' | 'o' | 'u' => true, _ => false, }) .count(); println!("{}", cnt); } }