C312312111133131121333133313113313331333133313331333133313331333211221   >>    C31231211113313112133313331311331333133313331333133313331333133321122   <<    C312312111133131121333133313113313331333133313331333133313331333211223   >>      C312312111133131121333133313113313331333133313331333133313331333211222   >>