C111123313121111121111331333133313331333132232233131211111211111133232331121   >>    C11112331312111112111133133313331333133313223223313121111121111113323233112   <<    C111123313121111121111331333133313331333132232233131211111211111133232331123   >>      C111123313121111121111331333133313331333132232233131211111211111133232331122   >>