import java.util.*;

class Main {
    public static void main(String args[]) {
        Scanner sc = new Scanner(System.in);
        String s = sc.nextLine();
        
        int v = 0;

        // Corrected for-each loop
        for (char x : s.toCharArray()) {
            if (x == 'a' || x == 'e' || x == 'i' || x == 'o' || x == 'u' ||
                x == 'A' || x == 'E' || x == 'I' || x == 'O' || x == 'U') {
                v++;
            }
            // ❌ removed wrong else block
        }

        // ✅ Print the result
        System.out.println(v);
        
        sc.close();
    }
}