import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String x = scan.next();
        x = x.replaceAll("[aeyuio]", "");
        if (x.equals(new StringBuilder(x).reverse().toString())) {System.out.print("YES");
        }else{ System.out.print("NO");}
    }
}