//<methods - (4), (9)>
public void PrintGSMParam(string model, string manufacturer, double price, string owner)
{
GSM myGsm = new GSM("5530", "Nokia", 100, "Petya");
Console.WriteLine(myGsm.ToString());
}
//<methods - (4), (9)>
public void PrintGSMParam(string model, string manufacturer, double price, string owner)
{
GSM myGsm = new GSM("5530", "Nokia", 100, "Petya");
Console.WriteLine(myGsm.ToString());
}