static void Main(string[] args)
{
UniversityTeacher universityTeacher = new UniversityTeacher(10);
Person person = universityTeacher;
Teacher teacher = universityTeacher;
Console.WriteLine();
Dog dog = new Dog();
dog.GetWeight();
Console.WriteLine();
Animal animal = new Animal();
string animalName = animal.PrintType();
Console.WriteLine(animalName);
Cat cat = new Cat();
string name = cat.PrintType();
Console.WriteLine(name);
Frog frog = new Frog();
string frognName = frog.PrintType();
Console.WriteLine(frognName);
}