C3123223313331322121111331333133313231333132212111112111111311232323311   >>    C312322331333132212111133133313331323133313221211111211111131123232331   <<    C3123223313331322121111331333133313231333132212111112111111311232323313   >>      C3123223313331322121111331333133313231333132212111112111111311232323312   >>