static void Main(string[] args)
{
int[] animalAges = new int[5];
Animal frog = new Frog("Froggy", 1, "male");
frog.ProduceSound();
animalAges[0] = frog.Age;
Animal kitten = new Kitten("Kitty", 4);
kitten.ProduceSound();
animalAges[1] = kitten.Age;
Animal dog = new Dog("Sharo", 10, "male");
dog.ProduceSound();
animalAges[2] = dog.Age;
Animal tomcat = new Tomcat("Tiger", 6);
tomcat.ProduceSound();
animalAges[3] = tomcat.Age;
Animal cat = new Cat("Fluffy", 3, "female");
cat.ProduceSound();
animalAges[4] = cat.Age;
Animal cat2 = new Cat("Maui Mauski", 18, "male");
cat2.ProduceSound();
Console.WriteLine("Average: {0}", calcAverage(animalAges));
}