import java.io.*;
import cc.*;
class MyFirstProgram {
    /** Print a hello message */
    public static void main(String[] args) {
        int a = getNumber();
        System.out.println("Hello, world!");
        System.out.println(Computer.isTurtle());
        System.out.println(a+a);
    }

    public static int getNumber()
    {
        return 6;
    }
}