C111123313121111121111331333133313331333131233133313331312313232213311   >>    C11112331312111112111133133313331333133313123313331333131231323221331   <<    C111123313121111121111331333133313331333131233133313331312313232213313   >>      C111123313121111121111331333133313331333131233133313331312313232213312   >>