C31232233133313221211113313331333133313331212111113331311312131   >>    C3123223313331322121111331333133313331333121211111333131131213   <<    C31232233133313221211113313331333133313331212111113331311312133   >>      C31232233133313221211113313331333133313331212111113331311312132   >>