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# This puzzle is unsolvable
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9
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2 1 3 4 5 6 7 8 9
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32 33 34 35 36 37 38 39 10
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31 56 57 73 58 60 61 40 11
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30 55 72 80 59 75 62 41 12
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29 54 71 79 74 76 63 42 13
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28 53 70 68 78 77 64 43 14
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27 52 50 67 0 66 65 44 15
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26 51 49 69 48 47 46 45 16
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25 24 23 22 21 20 19 18 17
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