andromeda:davidj sums > perl sums.pl 7 .6

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|       |  10:  |  23:  |       |  12:  |  31:  |       |       |
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|  :12  |       |       | 37:9  |       |       |  36:  |   9:  |
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|  :30  |       |       |       |       |       |       |       |
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|       |  :36  |       |       |       |       |       |       |
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|       | 8:14  |       |       |19:14  |       |       |    -  |
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|  :25  |       |       |       |       |       |       |  11:  |
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|  :39  |       |       |       |       |       |       |       |
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|       |    -  |  :10  |       |       |   :7  |       |       |
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SOLUTION

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|       |  10:  |  23:  |       |  12:  |  31:  |       |       |
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|  :12  |    9  |    3  | 37:9  |    3  |    6  |  36:  |   9:  |
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|  :30  |    1  |    4  |    7  |    2  |    3  |    8  |    5  |
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|       |  :36  |    2  |    8  |    7  |    9  |    6  |    4  |
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|       | 8:14  |    5  |    9  |19:14  |    5  |    9  |    -  |
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|  :25  |    5  |    1  |    6  |    2  |    7  |    4  |  11:  |
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|  :39  |    3  |    8  |    5  |    9  |    1  |    7  |    6  |
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|       |    -  |  :10  |    2  |    8  |   :7  |    2  |    5  |
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