#!/usr/bin/env python3
"""A bot that never decides anything. Passes on every request.

Not a joke entry, and no longer a control against Princess: a pass now means
the harness's own default - stand still, hold fire, deploy in the first legal
hex - and never means Princess plays instead. Nothing in an SDS seat is ever
played by Princess.

So this measures the floor beneath the floor. A lance that deploys, stands
where it landed and never fires is what "answered nothing" looks like on the
scoreboard, and it is the number every real bot must beat by a distance. It is
also the fastest way to check that the bridge is carrying decisions at all: if
a passthrough seat scores the same as a real bot, the real bot's answers are
not arriving.
"""

import json
import sys


def main() -> None:
    for line in sys.stdin:
        line = line.strip()
        if not line:
            continue
        message = json.loads(line)
        if message.get("type") != "observation":
            continue
        reply = {"type": "action", "seq": message["seq"], "kind": "pass"}
        sys.stdout.write(json.dumps(reply) + "\n")
        sys.stdout.flush()


if __name__ == "__main__":
    main()