C312312111133131121333133313113313331333133313331333133313331333132233323121   >>    C31231211113313112133313331311331333133313331333133313331333133313223332312   <<    C312312111133131121333133313113313331333133313331333133313331333132233323123   >>      C312312111133131121333133313113313331333133313331333133313331333132233323122   >>