static void Main()
{
var tankFactory = new RussianTankFactory();
var tank = tankFactory.CreateTank();
Console.WriteLine(tank);
}
public static void Main()
{
TankFactory russianFactory = new RussianTankFactory();
TankFactory germanFactory = new GermanTankFactory();
TankFactory americanFactory = new AmericanTankFactory();
var tiger = new Tank("Tiger", 4.5, 120);
var t34 = new Tank("T 34", 3.3, 75);
var m1Abrams = new Tank("M1 Abrams", 5.4, 120);
Console.WriteLine(tiger);
Console.WriteLine(t34);
Console.WriteLine(m1Abrams);
}