import sys
import time
import urllib.request


def main() -> int:
    if len(sys.argv) < 3:
        return 2

    url = (sys.argv[1] or "").strip()
    try:
        timeout_sec = int(sys.argv[2])
    except Exception:
        timeout_sec = 30

    if not url:
        return 2

    deadline = time.time() + max(1, timeout_sec)
    while time.time() < deadline:
        try:
            with urllib.request.urlopen(url, timeout=2) as resp:
                code = getattr(resp, "status", 200)
            if 200 <= code < 500:
                return 0
        except Exception:
            pass
        time.sleep(1.0)
    return 1


if __name__ == "__main__":
    raise SystemExit(main())