C312312111133131121333133313113313331333133313331333133112323223311211   >>    C31231211113313112133313331311331333133313331333133313311232322331121   <<    C312312111133131121333133313113313331333133313331333133112323223311213   >>      C312312111133131121333133313113313331333133313331333133112323223311212   >>