import java.util.Scanner;
public class CountVowels {
static Scanner sc = new Scanner(System.in);
public static void main(String[] args) {
System.out.print("Enter a string: ");
String s = sc.nextLine();
int vowelCount = 0;
for (int i = 0; i < s.length(); i++) {
char c = s.charAt(i);
if ((c == 'A') || (c == 'a') || (c == 'E') || (c == 'e') || (c == 'I') || (c == 'i')
|| (c == 'O') || (c == 'o') || (c == 'U') || (c == 'u'))
vowelCount++;
}
System.out.println("That string contains " + vowelCount + " vowels.");
}
}