public static int sherlockAndAnagrams(String s) {
        int frame = 1;
        int result = 0;
        int len = s.length();
        
        while(frame < len){
            for(int i = 0; i <= len - frame; i++){
               String curr = s.substring(i, i + frame);
               
               for(int j = i + 1; j <= len - frame; j++){
                   Map<Character, Long> charCountMap = s.substring(j, j + frame).chars().mapToObj(c -> (char) c).collect(Collectors.groupingBy(c -> c, Collectors.counting()));
                   
                   if(itContains(charCountMap, curr)){
                       ++result;
                   }
               }
            }
            
            ++frame;
        }
        
        return result;
    }
    
    private static boolean itContains(Map<Character, Long> l, String c){
        for(Character cr : c.toCharArray()) {
            long v = l.getOrDefault(cr, 0L);
            
            if(v == 0) {
                return false;
            }
            
            l.put(cr, --v);
        }
        
        return true;
    }