@SuppressWarnings("unchecked")
	@Override
	public void printAnswer(Object answer) {
		HashMap<Integer, Integer> answerMap;
		try {
			answerMap = (HashMap<Integer, Integer>)answer;
		} catch (ClassCastException e){return;}
		for (Integer key: answerMap.keySet()){
			System.out.println(key + "  ->  " + answerMap.get(key));
		}
	}