import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int num;
while(sc.hasNextInt()) {
num = sc.nextInt();
if(num % 2 == 0) {
System.out.println("Even");
} else {
System.out.println("Odd");
}
}
}
}