C31231211111133131211113313331323133313113313223133313331333132322313221   >>    C3123121111113313121111331333132313331311331322313331333133313232231322   <<    C31231211111133131211113313331323133313113313223133313331333132322313223   >>      C31231211111133131211113313331323133313113313223133313331333132322313222   >>