C31232233133313221211113313331333133313331212111133131111312131   >>    C3123223313331322121111331333133313331333121211113313111131213   <<    C31232233133313221211113313331333133313331212111133131111312133   >>      C31232233133313221211113313331333133313331212111133131111312132   >>