C111123313121111121111331333133313331333132232233131211111112121   >>    C11112331312111112111133133313331333133313223223313121111111212   <<    C111123313121111121111331333133313331333132232233131211111112123   >>      C111123313121111121111331333133313331333132232233131211111112122   >>