21.py

import zlib
import bz2


def main():
 first_step()


def first_step():
 file = open("game/package.pack", "rb")
 bs = file.read()
 result = ""
 while True:
 if bs.startswith(b"x\x9c"):
 bs = zlib.decompress(bs)
 result += " "
 elif bs.startswith(b"BZ"):
 bs = bz2.decompress(bs)
 result += "#"
 elif bs.endswith(b"\x9cx"):
 bs = bs[::-1]
 result += "\n"
 else:
 break
 print(result)


if __name__ == "__main__":
 main()