C312322331333132212111133133313331333133312121111331211111211111122121   >>    C31232233133313221211113313331333133313331212111133121111121111112212   <<    C312322331333132212111133133313331333133312121111331211111211111122123   >>      C312322331333132212111133133313331333133312121111331211111211111122122   >>