import json
import sys

try:
    data = sys.stdin.read().strip()
    if not data:
        sys.exit(1)
    payload = json.loads(data)
    if isinstance(payload, list):
        models_list = payload
    elif isinstance(payload, dict):
        models_list = payload.get(
            "models", payload.get("tags", payload.get("models_list", []))
        )
    else:
        sys.exit(1)

    if not isinstance(models_list, list):
        sys.exit(1)

    names = []
    for entry in models_list:
        if isinstance(entry, dict):
            name = entry.get("name") or entry.get("model")
        elif isinstance(entry, str):
            name = entry
        else:
            continue
        if name:
            names.append(name)
    print(",".join(names))
except Exception:
    sys.exit(1)