C111112111133131121133133313331333133313331322121111331121323311   >>    C11111211113313112113313331333133313331333132212111133112132331   <<    C111112111133131121133133313331333133313331322121111331121323313   >>      C111112111133131121133133313331333133313331322121111331121323312   >>