import zlib
import re

def extract_and_decompress_streams(filename):
    with open(filename, 'rb') as f:
        content = f.read()

    # Find all FlateDecode streams
    pattern = rb'<<.*?/Filter\s*/FlateDecode.*?>>.*?stream\s*(.*?)\s*endstream'
    matches = re.findall(pattern, content, re.DOTALL)

    for i, match in enumerate(matches):
        try:
            stream_data = match.strip()
            decompressed = zlib.decompress(stream_data)
            print(f"Stream {i+1}:", decompressed.decode('utf-8', errors='ignore'))
        except Exception as e:
            print(f"Error with stream {i+1}: {e}")

extract_and_decompress_streams("challenge.pdf")