import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String str = sc.next();
		
		int index = str.indexOf("?");
		
		switch (index) {
		case 0:
			System.out.println("y");
			break;
		case 1:
			System.out.println("u");
			break;
		case 2:
			System.out.println("k");
			break;
		case 3:
			System.out.println("i");
			break;
		case 4:
			System.out.println("c");
			break;
		case 5:
			System.out.println("o");
			break;
		case 6:
			System.out.println("d");
			break;
		case 7:
			System.out.println("e");
			break;
		case 8:
			System.out.println("r");
			break;
		}
		sc.close();
	}
}