C31232233133313221211113313331333133313331212111133121111113223121   >>    C3123223313331322121111331333133313331333121211113312111111322312   <<    C31232233133313221211113313331333133313331212111133121111113223123   >>      C31232233133313221211113313331333133313331212111133121111113223122   >>