C31232233133313221211113313331333133313331212111133133322133313113121212321   >>    C3123223313331322121111331333133313331333121211113313332213331311312121232   <<    C31232233133313221211113313331333133313331212111133133322133313113121212323   >>      C31232233133313221211113313331333133313331212111133133322133313113121212322   >>