public static void reflection(String codeLine, MinStack s) {
		String[] codes=codeLine.split(",");
		for(String code:codes) {
			if (code.indexOf("push")!=-1) {s.push(Integer.parseInt(code.substring(code.indexOf('(')+1,code.length()-1)));}
			else if(code.indexOf("pop")!=-1) {s.pop();}
			else if (code.indexOf("top")!=-1) {System.out.println(s.top());}
			else if (code.indexOf("getMin")!=-1) {System.out.println(s.getMin());}
			else throw new IllegalArgumentException("");
		}
	}