C31232233133313221211113313331333133313331212111133133313311223231   >>    C3123223313331322121111331333133313331333121211113313331331122323   <<    C31232233133313221211113313331333133313331212111133133313311223233   >>      C31232233133313221211113313331333133313331212111133133313311223232   >>