C31232233133313221211113313331333133313331212111133133112132322331   >>    C3123223313331322121111331333133313331333121211113313311213232233   <<    C31232233133313221211113313331333133313331212111133133112132322333   >>      C31232233133313221211113313331333133313331212111133133112132322332   >>