[[(4),(5),(6)],[(7),(?),(9)],[(10),(11),(12)],[(13),(14),(15)],[(16),(17),(18)]];[[(7),(8),(9)],[(10),(11),(12)],[(13),(14),(15)],[(16),(17),(18)],[(19),(20),(21)]];[[(19),(20),(21)],[(22),(23),(24)],[(25),(26),(27)],[(28),(29),(30)],[(31),(32),(33)]];[[(22),(23),(24)],[(25),(26),(27)],[(28),(29),(30)],[(31),(32),(33)],[(34),(35),(36)]]

