C31232233133313221211113313331333133313331212111112111133121111133211231   >>    C3123223313331322121111331333133313331333121211111211113312111113321123   <<    C31232233133313221211113313331333133313331212111112111133121111133211233   >>      C31232233133313221211113313331333133313331212111112111133121111133211232   >>