import pyutil as pyu
pyu.get_local_pyinfo()

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

from typing import List

class Solution:
  def rotate(self, matrix: List[List[int]]) -> None:
    matrix.reverse()

    for i in range(len(matrix)):
      for j in range(i + 1, len(matrix)):
        matrix[i][j], matrix[j][i] = matrix[j][i], matrix[i][j]

new Solution().rotate()