- key, value = item.split('=')
- value = int(value)
- result[key + '0'] = value
+ key, values = item.split('=')
+ values = values.split(',')
+ value = int(values[0])
+ blacklist = frozenset(int(v) for v in values[1:] if v)
+ result[key + '0'] = value, blacklist