C111112111133131121133133313331333121111133313331322331313311311   >>    C11111211113313112113313331333133312111113331333132233131331131   <<    C111112111133131121133133313331333121111133313331322331313311313   >>      C111112111133131121133133313331333121111133313331322331313311312   >>