C31231211111133131211113313331323133313113313223313331323232133221   >>    C3123121111113313121111331333132313331311331322331333132323213322   <<    C31231211111133131211113313331323133313113313223313331323232133223   >>      C31231211111133131211113313331323133313113313223313331323232133222   >>