C31232233133313221211113313331333133313331212111133121111122332221   >>    C3123223313331322121111331333133313331333121211113312111112233222   <<    C31232233133313221211113313331333133313331212111133121111122332223   >>      C31232233133313221211113313331333133313331212111133121111122332222   >>