C312322331333132212111133133313331333133112112312111133131133233121   >>    C31232233133313221211113313331333133313311211231211113313113323312   <<    C312322331333132212111133133313331333133112112312111133131133233123   >>      C312322331333132212111133133313331333133112112312111133131133233122   >>