{
    public class HashStudent {
        public static void main(String[] args) {
            Student mickey = new Student("Mickey", "Mouse");
            CustomHasher<Student> hs = (s) -> {
                long value = 5381;

                for (char c : s.getLastName().toCharArray()) {
                    value = ((value << 3) + value) + (int)c;
                }
                for (char c : s.getFirstName().toCharArray()) {
                    value = ((value << 3) + value) + (int)c;
                }
                return value;
            };
            System.out.println("Hash is: "+ hs.hash(mickey) );
        }
    }
}