Map<Character, Integer> map=new HashMap<>();
        int minLength=Integer.MAX_VALUE;
        String result = null;
        for(char ch: licensePlate.toLowerCase().toCharArray())
            if(Character.isLetter(ch))map.put(ch, map.getOrDefault(ch, 0) +1);
        for(String word:words){
            System.out.println(word);
            Map<Character, Integer> temp = new HashMap<>(map);
            int count = temp.size();
            for(char ch:word.toCharArray())
                if(temp.containsKey(ch))temp.put(ch, temp.get(ch) -1);
            
            for(Map.Entry<Character, Integer> entry: temp.entrySet()){
                if(entry.getValue()>0) break;
                count--;
            }
            if(count<=0&&minLength>word.length()){
                result=word;
                minLength=word.length();
            }
        }
        return result;