public abstract class Gate implements Cloneable
{
    public abstract int inCount();
    public abstract int outCount();

    public abstract Wire inWire(int n);
    public abstract Wire outWire(int n);

    public abstract void act();
    public abstract Object clone();
    
    public String deepString()
    {
	return toString();
    }

    static public Wire wireByNumber(int num)
    {
	return ourWireFactory.getWire(num);
    }

    static protected WireFactory ourWireFactory = new WireFactory();
}