code: public static void parseAuxInfo(String aux, long[] numbers) {
          aux = aux.substring(aux.indexOf("/N:") + 3);
          String numberStringAux = aux.substring(0, aux.indexOf('/'));
          int i = 1;
          for (String numberString : numberStringAux.split("[,;]"))
              numbers[Integer.valueOf(numberString) - 1] = i++;
      }
docs: Parse the atom numbering from the auxinfo.
  
  @param aux InChI AuxInfo
  @param numbers the atom numbers