C312312111133131121333133313113313331333133313331333133112321311331   >>    C31231211113313112133313331311331333133313331333133313311232131133   <<    C312312111133131121333133313113313331333133313331333133112321311333   >>      C312312111133131121333133313113313331333133313331333133112321311332   >>