C3123223313331322121111331333133313231333132212111112111112213222311   >>    C312322331333132212111133133313331323133313221211111211111221322231   <<    C3123223313331322121111331333133313231333132212111112111112213222313   >>      C3123223313331322121111331333133313231333132212111112111112213222312   >>