C312322331333132212111133133313331333133312121111121111331211111223213231   >>    C31232233133313221211113313331333133313331212111112111133121111122321323   <<    C312322331333132212111133133313331333133312121111121111331211111223213233   >>      C312322331333132212111133133313331333133312121111121111331211111223213232   >>