EvenOdd

import java.util.Scanner;
import java.util.regex.Pattern;

public class OddOrEven {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String input = scanner.nextLine();
        int number;
        Pattern pattern = Pattern.compile("[0-9]+");
        while (!pattern.matcher(input).matches()){
            System.out.println("Wrong input! Please enter digit instead symbol.");
            input = scanner.nextLine();

        }

        number = Integer.parseInt(input);
        System.out.println(number != 0?number%2 == 0?"Even":"Odd":"Zero is neither even nor odd.");
    }
}