C111123313121111121111331333133313331333131221111331333131133133313222233121   >>    C11112331312111112111133133313331333133313122111133133313113313331322223312   <<    C111123313121111121111331333133313331333131221111331333131133133313222233123   >>      C111123313121111121111331333133313331333131221111331333131133133313222233122   >>