C312312111133131121333133313113313331333133313331333133112121111332221   >>    C31231211113313112133313331311331333133313331333133313311212111133222   <<    C312312111133131121333133313113313331333133313331333133112121111332223   >>      C312312111133131121333133313113313331333133313331333133112121111332222   >>