C111123313121111121111331333133313331333132232233131211111231231   >>    C11112331312111112111133133313331333133313223223313121111123123   <<    C111123313121111121111331333133313331333132232233131211111231233   >>      C111123313121111121111331333133313331333132232233131211111231232   >>