static void Main(string[] args)
{
VendingMachine vm = new VendingMachine(new List <Product>()
{
new Coke(), new Coke(), new Chips(), new Snickers()
});
vm.InsertCoin(0.5);
vm.InsertCoin(0.5);
vm.GetProduct(1);
vm.InsertCoin(5);
vm.GetProduct(1);
vm.GetProduct(1);
Console.ReadKey();
}
