Составим матрицу
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X1 |
X2 |
X3 |
X4 |
X5 |
X6 |
X7 |
X8 |
X9 |
X10 |
X11 |
X12 |
X13 |
X1 |
0 |
3 |
7 |
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X2 |
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0 |
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2 |
1 |
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X3 |
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0 |
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1 |
2 |
4 |
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X4 |
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0 |
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1 |
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1 |
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X5 |
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0 |
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1 |
2 |
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X6 |
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0 |
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2 |
2 |
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X7 |
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0 |
1 |
1 |
2 |
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X8 |
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0 |
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2 |
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X9 |
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0 |
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3 |
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X10 |
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0 |
1 |
1 |
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X11 |
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6 |
X12 |
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0 |
5 |
X13 |
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0 |
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X1 |
X2 |
X3 |
X4 |
X5 |
X6 |
X7 |
X8 |
X9 |
X10 |
X11 |
X12 |
X13 |
X1 |
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X1 X2 |
X1 X3 |
X1 X2X4 |
X1 X2X5 |
X1 X3X6 |
X1 X3X7 |
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X2 |
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X2 X4 |
X2 X5 |
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X3 |
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X3 X5 |
X3 X6 |
X3 X7 |
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X4 |
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X4 X8 |
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X4 X11 |
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X5 |
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X5 X8 |
X5 X9 |
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X6 |
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X6 X10 |
X6 X11 |
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X7 |
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X7 X8 |
X7 X9 |
X7 X10 |
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X8 |
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X8 X11 |
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X9 |
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X9 X12 |
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X10 |
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X10 X11 |
X10 X12 |
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X11 |
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X11 X13 |
X12 |
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X12 X13 |
X13 |
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