import java.util.Scanner;

public class animalClass {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("What animal? : ");
        String animal = scanner.nextLine();

        switch (animal) {
            case "dog":
                System.out.println("mammal");
                break;
            case "crocodile":
                System.out.println("reptile");
                break;
            case "tortois":
                System.out.println("reptile");
                break;
            case "snake":

                System.out.println("reptile");
                break;
            default:
                System.out.println("unknown");
                break;
        }


    }


}