C312312111133131121333133313113313331333133313331333133112331323132211   >>    C31231211113313112133313331311331333133313331333133313311233132313221   <<    C312312111133131121333133313113313331333133313331333133112331323132213   >>      C312312111133131121333133313113313331333133313331333133112331323132212   >>