C3123223313331322121111331333133313231333133313331312111133133313231232311   >>    C312322331333132212111133133313331323133313331333131211113313331323123231   <<    C3123223313331322121111331333133313231333133313331312111133133313231232313   >>      C3123223313331322121111331333133313231333133313331312111133133313231232312   >>