| f | from collections import Counter | f | from collections import Counter | 
            |  |  |  |  | 
            |  | class DefCounter(Counter): |  | class DefCounter(Counter): | 
            |  |  |  |  | 
            | n | def __init__(self, iterable, missing=-1): | n | def __init__(self, obj, missing=-1): | 
            |  | super().__init__(iterable) |  | super().__init__(obj) | 
            |  | self.missing = missing |  | self.missing = missing | 
            |  |  |  |  | 
            |  | def __missing__(self, key): |  | def __missing__(self, key): | 
            |  | return self.missing |  | return self.missing | 
            |  |  |  |  | 
            |  | def __abs__(self): |  | def __abs__(self): | 
            | t | summ = 0 | t | res = 0 | 
            |  | for value in self.values(): |  | for val in self.values(): | 
            |  | if value > 0: |  | if val > 0: | 
            |  | summ += value |  | res += val | 
            |  | return summ |  | return res |