C111123313121111121111331333133313331323231333133313331333131133133313223312311   >>    C11112331312111112111133133313331333132323133313331333133313113313331322331231   <<    C111123313121111121111331333133313331323231333133313331333131133133313223312313   >>      C111123313121111121111331333133313331323231333133313331333131133133313223312312   >>