public static void main(String[] args) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int num = Integer.parseInt(br.readLine().trim());
Object o;
// Solution starts here
if (num < 1 || num > Math.pow(2, 30)) throw new Exception();
Solution ob = new Solution();
Class<?> c = Class.forName("Solution$Private");
Constructor<?> constructor = c.getDeclaredConstructor(Solution.class);
constructor.setAccessible(true);
o = constructor.newInstance(ob);
Method m = c.getDeclaredMethod("powerof2", new Class[] {int.class});
m.setAccessible(true);
String ans = (String) m.invoke(o, num);
System.out.println(num + " is " + ans);
// ends here
System.out.println(
"An instance of class: " + o.getClass().getSimpleName() + " has been created");
} // end of main
