249 โจทย์ที่ไม่มีคำตอบ 24

[0, 0, 0, 0]
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[0, 9, 9, 9]
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[1, 1, 1, 2]
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[1, 1, 1, 5]
[1, 1, 1, 6]
[1, 1, 1, 7]
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[1, 1, 2, 4]
[1, 1, 2, 5]
[1, 1, 3, 3]
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[1, 1, 6, 7]
[1, 1, 7, 7]
[1, 1, 7, 8]
[1, 1, 7, 9]
[1, 1, 8, 9]
[1, 1, 9, 9]
[1, 2, 2, 2]
[1, 2, 2, 3]
[1, 2, 9, 9]
[1, 3, 5, 5]
[1, 4, 9, 9]
[1, 5, 5, 7]
[1, 5, 5, 8]
[1, 5, 7, 7]
[1, 6, 6, 7]
[1, 6, 7, 7]
[1, 6, 7, 8]
[1, 7, 7, 7]
[1, 7, 7, 8]
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[2, 2, 2, 6]
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[2, 3, 3, 4]
[2, 5, 5, 5]
[2, 5, 5, 6]
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[2, 7, 7, 7]
[2, 7, 7, 9]
[2, 7, 9, 9]
[2, 9, 9, 9]
[3, 3, 5, 8]
[3, 4, 6, 7]
[3, 4, 8, 8]
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[3, 5, 7, 7]
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[4, 4, 6, 6]
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[5, 5, 5, 7]
[5, 5, 5, 8]
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[5, 7, 7, 8]
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[5, 8, 9, 9]
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[6, 6, 6, 7]
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[6, 6, 7, 8]
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[6, 7, 7, 9]
[6, 7, 8, 8]
[6, 9, 9, 9]
[7, 7, 7, 7]
[7, 7, 7, 8]
[9, 9, 9, 9]