static void Main(string[] args)
{
Date manufacDate = new Date(05, 06, 2019);
Date expDate = new Date(05, 06, 2020);
Medicine medicine = new Medicine("54re", "Atesunate", "Chemiron", 2314, 300, 45, manufacDate, expDate);
Medicine medicine2 = new Medicine("54re", "Atesunate", "Chemiron", 2314, 300, 0, manufacDate, expDate);
Sales sales = new Sales("54de", "Lagos", 35, 4500, 3000);
Console.WriteLine(medicine.Print());
Console.WriteLine(sales.Display(5000, 4000));
Console.WriteLine(sales.Display());
Console.WriteLine(medicine.Print(manufacDate, expDate));
Console.WriteLine(medicine2.ZeroStock());
}