C31232233133313221211113313331333133313331212111133133313223311233321   >>    C3123223313331322121111331333133313331333121211113313331322331123332   <<    C31232233133313221211113313331333133313331212111133133313223311233323   >>      C31232233133313221211113313331333133313331212111133133313223311233322   >>