
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int n = sc.nextInt();
        int digit;

        digit = n % 10;

        if (n == 2 | n == 4 | n == 5 | n == 7 | n == 9){
            System.out.println("hon");

        } else if (n == 0 | n == 1 | n == 6 | n == 8){
            System.out.println("pon");
            
        } else if (n == 3){
            System.out.println("bon");
        }

    }
