C111112111133131121133133313331333131133133313331322331333132212321   >>    C11111211113313112113313331333133313113313331333132233133313221232   <<    C111112111133131121133133313331333131133133313331322331333132212323   >>      C111112111133131121133133313331333131133133313331322331333132212322   >>