C31232233133313221211113313331333132313331322121111121111133313232213231322321   >>    C3123223313331322121111331333133313231333132212111112111113331323221323132232   <<    C31232233133313221211113313331333132313331322121111121111133313232213231322323   >>      C31232233133313221211113313331333132313331322121111121111133313232213231322322   >>