```
import bz2
import os
from zipfile import ZipFile
import shutil
import lzma
import gzip

def _overwrite(bin_data, file_path):
with open("temp.bin", "wb") as file:
file.write(bin_data)
file.close()

shutil.move("temp.bin", file_path)

def bzip2_unzip(file_path):
with open(file_path, "rb") as file:
bin_data = bz2.decompress(file.read())
file.close()

_overwrite(bin_data, file_path)

def zip_unzip(file_path):
zf = ZipFile(file_path, 'r')
zf.extract(member='flag.txt', path="extracted")
zf.close()

shutil.move("extracted/flag.txt", "flag")

def xz_unzip(file_path):
bin_data = lzma.open(file_path).read()

_overwrite(bin_data, file_path)

def gzip_unzip(file_path):
with gzip.open(file_path, 'rb') as file:
bin_data = file.read()

_overwrite(bin_data, file_path)

def main():
flag = "flag"
shutil.copy2("flag.txt", f"{flag}")

for i in range(2000):
compress_type = os.popen(f"file {flag}").read().strip()
print(i, compress_type)
if "bzip2 compressed" in compress_type:
bzip2_unzip(flag)
elif "Zip archive" in compress_type:
zip_unzip(flag)
elif "XZ compressed" in compress_type:
xz_unzip(flag)
elif "gzip compressed" in compress_type:
gzip_unzip(flag)
else:
print("we got the flag !!")
print(os.popen(f"cat {flag}"))
break

main()
```