comefrom: <awangdev>49. Group Anagrams_1.java
code: private String getKey(String s) { 
          int[] count = new int[26];
          for (char c : s.toCharArray()) count[c - 'a']++;
          StringBuilder sb = new StringBuilder();
          for (int i = 0; i < 26; i++) sb.append(count[i]);
          return sb.toString();
      }
masked: private String var_0 ( String var_2 ) {
    int [ ] var_4 = new int [ 26 ] ;
    for ( char var_6 : var_2 . toCharArray ( ) ) var_4 [ var_6 - 'a' ] ++ ;
    StringBuilder var_9 = new StringBuilder ( ) ;
    for ( int var_11 = 0 ;
    var_11 < 26 ;
    var_11 ++ ) var_9 . append ( var_4 [ var_11 ] ) ;
    return var_9 . toString ( ) ;
  }
  