Main {
	{{
		 public static void main(String args[]) throws Exception {
			 Formula csp = Formula.parse(System.in);

			 System.out.println("The given input is:");
			 csp.print();

			 Traversal travNumLit = new Traversal(new LitCounter());
			 // the second argument to traverse is tricky
			 // it is needed becuase we pass down the weight from ConcreteClause to literals
			 System.out.println("The number of literals is:"
					 + travNumLit.traverse(csp));
					 // + travNumLit.traverse(csp, 0));

			 Traversal travWeight = new Traversal(new TotalWeightCounter());
			 System.out.println("The total weight of this formula is:"
					 + travWeight.traverse(csp));

			 System.out.println("================================================");

		 }
	 }}
}

Formula {
	void print() to * (PrintVisitor);
	void display() to * (DisplayVisitor);
}

LiteralList {
	void print() to * (PrintVisitor);
}