static void Main(string[] args)
{
StoreContext sc = new StoreContext ();
sc.MinOutputPerDay = 20;
sc.MaxOutputPerDay =50;
CompMinStore s;
s= new CompMinStoreByMinOutputPerDay ();
sc.CompStraegy = s;
Console.WriteLine (sc.CompStraegy.GetType().Name + ":" + sc.Comp());
s= new CompMinStoreByMaxOutputPerDay();
sc.CompStraegy = s;
Console.WriteLine (sc.CompStraegy.GetType().Name + ":" + sc.Comp());
s= new CompMinStoreByAvgOutput();
sc.CompStraegy = s;
Console.WriteLine (sc.CompStraegy.GetType().Name + ":" + sc.Comp());
Console.ReadLine ();
}