static Map<Character, Integer> table;
    static Set<String> masterPhoneNums;
    public static List<String> vanity(List<String> codes, List<String> numbers) {
        table = initTable();        
        masterPhoneNums = new LinkedHashSet<>();
        masterPhoneNums.addAll(numbers);
        
        List<String> resPhone = new ArrayList<String>();
        
        String vanityCode;
        List subVanityNums;
        for(String code: codes){
            vanityCode = vanityCode2Num( code );
            subVanityNums = findVanityNum(vanityCode);
            if( subVanityNums.size()>0){
                resPhone.addAll(subVanityNums);                
            }
            System.out.println("code:"+code+ " subVanityNums:"+subVanityNums);
            subVanityNums.clear();
        }
        Collections.sort(resPhone);
        return resPhone;
    }

    static List findVanityNum(String vanityNum){
        List arrPhNum = new ArrayList();
        System.out.println("total phone masterPhoneNums:"+masterPhoneNums.size());
        int counter=0;
        for(String phNum: masterPhoneNums) {
            if(phNum.contains(vanityNum)){
                arrPhNum.add(phNum);
                counter++;
            }
        }
        System.out.println("counter:"+counter);
        return arrPhNum;
    }
    
    static String vanityCode2Num(String vanityCode){
        String vanityNum = "";
        for(int i =0; i<vanityCode.length(); i++) {
            vanityNum += table.get(vanityCode.charAt(i));
        }
        System.out.println("vanityCode:"+vanityCode + " vanityNum:"+vanityNum);
        return vanityNum;
    }
    
    static Map<Character, Integer> initTable() {
       Map<Character, Integer> table = new HashMap<Character, Integer>(); 
        
        Character j='A';
        for(int i=2;i<10;i++,j++) {
            table.put(j,i);
            table.put(++j,i);
            table.put(++j,i);
            if(i==7 || i==9) {
                table.put(++j,i);
            }
        }
        return table;
    }
}