import java.util.Vector;

class UsecaseSeven_pl<A> {
	
	foo(bar){
		bar = true;
		return 1;
	}

	foo1(a) {
	   c;
	   c = new Vector<Integer>();
	   b;
	   b = new UsecaseSeven_pl<A>();  
	   return c.addElement(a);
	}

}