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["الأرقام الأولى","الأرقام الثانية"]
[18,50,null,18,null,null,"لوجودها  اكثر من مرة في العمود الأول و وجودها  العمود الثاني اقل"]
[19,18,null,19,null,null,18]
[900,30,null,900,null,null,19]
[18,80,null,null,null,null,900]
[30,70]
[70,18]
[80,19]
[900,900]
[19]
[18]
["B"]
["C"]
["M"]
["C"]