C31232233133313221211113313331333133313331212111133133313311221211221123131121   >>    C3123223313331322121111331333133313331333121211113313331331122121122112313112   <<    C31232233133313221211113313331333133313331212111133133313311221211221123131123   >>      C31232233133313221211113313331333133313331212111133133313311221211221123131122   >>