C3123223313331322121111331333133313331331121123121111331311211312331   >>    C312322331333132212111133133313331333133112112312111133131121131233   <<    C3123223313331322121111331333133313331331121123121111331311211312333   >>      C3123223313331322121111331333133313331331121123121111331311211312332   >>