C111123313121111121111331333133313331333131322113121111331322312331312311   >>    C11112331312111112111133133313331333133313132211312111133132231233131231   <<    C111123313121111121111331333133313331333131322113121111331322312331312313   >>      C111123313121111121111331333133313331333131322113121111331322312331312312   >>