import java.io.IOException;
import java.util.Scanner;
class Example {
    public static void main(String args[]) throws IOException {
        int start_ans = 0;
        Scanner in = new Scanner(System.in);
        do {
            System.out.println(" [1] one\n [2] two\n [3] three");
            try {
                start_ans = in.nextInt();
        } catch(Exception e) {
            System.out.println("Error");
            in.next();
        }
        } while(start_ans != 1 && start_ans != 2 && start_ans != 3);
    }
}