public final class UnisexBathroom {
	public static void main (String args[]) {
		BathroomController c = new BathroomController(); 
		Man m1 = new Man(c,1);	Man m2 = new Man(c,2); Man m3 = new Man(c,3);
		Woman w1 = new Woman(c,1);	Woman w2 = new Woman(c,2); Woman w3 = new Woman(c,3);
		m1.start(); w1.start(); m2.start(); w2.start(); m3.start(); w3.start();
		try {
			m1.join(); w1.join(); m2.join(); w2.join();
			m3.join(); w3.join(); 
		}
		catch (InterruptedException e) {}
	}
}

final class Man extends TDThread {
	private BathroomController c;
	private int num;
	Man (BathroomController c, int num) {super("Man"+num); this.c = c; this.num = num; }
	public void run () {
		System.out.println("Man"+num+" running");
		c.mensroom(num);
		System.out.println("Man"+num+" finished");
	}
}

final class Woman extends TDThread {
	private BathroomController c;
	private int num;
	Woman (BathroomController c, int num) {super("Woman"+num); this.c = c; this.num = num; }
	public void run () {		
		System.out.println("Woman"+num+" running");
		c.ladiesroom(num);
		System.out.println("Woman"+num+" finished");
	}
}

final class BathroomController {
   /* declare variables and semaphores here */
	int numMen = 0;	// number of men in bathroom
	int numWomen = 0; // number of women in bathroom

	public BathroomController() { }

	public void mensroom(int num) {
		manEnter(); 
		
		System.out.println("Man" + num + " use bathroom");
		//try{Thread.sleep(10);}catch(InterruptedException e){}; 
		
		manExit(); 
	}
	public void ladiesroom(int num) {
		womanEnter(); 
		
		System.out.println("Woman" + num + " use bathroom");
		//try{Thread.sleep(10);}catch(InterruptedException e){}; 
		
		womanExit();
	}

	private void manEnter() {

		//if (numWomen>0) System.out.println("Error: concurrent access");		
	}

	private void manExit() {

	}

	private void womanEnter() {
	
		//if (numMen>0) System.out.println("Error: concurrent access");
	}

	private void womanExit() {

	}
}