C31232233133313221211113313331333133313331212111133132213232233321   >>    C3123223313331322121111331333133313331333121211113313221323223332   <<    C31232233133313221211113313331333133313331212111133132213232233323   >>      C31232233133313221211113313331333133313331212111133132213232233322   >>