import pyutil as pyu
pyu.get_local_pyinfo()

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

from typing import List

class Solution:
  def convertToTitle(self, n: int) -> str:
    return self.convertToTitle((n - 1) // 26) + \
        chr(ord('A') + (n - 1) % 26) if n else ''

new Solution().convertToTitle()