C31232233133313221211113313331333133313331212111133133313232132233321   >>    C3123223313331322121111331333133313331333121211113313331323213223332   <<    C31232233133313221211113313331333133313331212111133133313232132233323   >>      C31232233133313221211113313331333133313331212111133133313232132233322   >>