monitor s{
	condition c;
	condition t;
	int result;
	int computed;
	void complicatedCalculation(){
		result = 42;
		computed = 1;
		signalc(c);
		signalc(t);
	}
	int askAboutUniverse(){
		if (computed != 1){ waitc(t); }
		return result;
	}
	int getPizzaDiameter(){
		if (computed != 1){ waitc(c); }
		return result;
	}
	init { result = 0; computed = 0; }
}

void server() { complicatedCalculation(); }
void scientist() { cout << askAboutUniverse() << endl; }
void pizzerman() { cout << getPizzaDiameter() << endl; }

main(){
	cobegin { server(); scientist(); pizzerman(); }
}