public List<String> orderList(List<String> listStr) {
        List<String> orderedList = new ArrayList<String>();
        
        for(String s : listStr) {
            if(s.contains("AIRFIELD")) {
                orderedList.add(s);
            }
        }
        
        for(String s : listStr) {
            if(s.contains("RUNWAY")) {
                orderedList.add(s);
            }
        }
        
        for(String s : listStr) { 
            if( !(s.contains("AIRFIELD") || s.contains("RUNWAY")) ) {
                orderedList.add(s);
            }
        }
        
        System.out.println(orderedList.toString());
        
        return orderedList;
    }