C31232233133313221211113313331333133313331212111133133112323212331   >>    C3123223313331322121111331333133313331333121211113313311232321233   <<    C31232233133313221211113313331333133313331212111133133112323212333   >>      C31232233133313221211113313331333133313331212111133133112323212332   >>