C3123223313331322121111331333133313231333132212111112111113223313211   >>    C312322331333132212111133133313331323133313221211111211111322331321   <<    C3123223313331322121111331333133313231333132212111112111113223313213   >>      C3123223313331322121111331333133313231333132212111112111113223313212   >>