import pyutil as pyu
pyu.get_local_pyinfo()

print(pyu.ps2("python-dotenv"))

from typing import List

class Solution:
  def numRabbits(self, answers: List[int]) -> int:
    ans = 0
    count = Counter()

    for answer in answers:
      if count[answer] % (answer + 1) == 0:
        ans += answer + 1
      count[answer] += 1

    return ans

new Solution().numRabbits()