import pyutil as pyu
pyu.get_local_pyinfo()

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

from typing import List

class Solution:
  def commonChars(self, A: List[str]) -> List[str]:
    ans = []
    commonCount = [math.inf] * 26

    for a in A:
      count = [0] * 26
      for c in a:
        count[ord(c) - ord('a')] += 1
      for i in range(26):
        commonCount[i] = min(commonCount[i], count[i])

    for c in string.ascii_lowercase:
      for j in range(commonCount[ord(c) - ord('a')]):
        ans.append(c)

    return ans

new Solution().commonChars()