static void Main(string[] args)
{
Console.OutputEncoding = Encoding.Unicode;
NumberInput number = new NumberInput();
SubscriberA subA = new SubscriberA();
SubscriberB subB = new SubscriberB();
subA.Subscriber(number);
subB.Subscriber(number);
number.InputNumber();
}
public void Subscriber(NumberInput numberInput)
{
numberInput.InputEvent += Square;
}