static void Main(string[] args)
{
var woodBuilder = new WoodBuilder();
woodBuilder.BuildFloor();
woodBuilder.BuildWalls();
woodBuilder.BuildRoof();
woodBuilder.GetResult();
var concreteBuilder = new ConcreteBuilder();
concreteBuilder.BuildFloor();
concreteBuilder.BuildWalls();
concreteBuilder.BuildRoof();
concreteBuilder.GetResult();
}