а)
0 1 -4
-5 -1 3
2 -3 -2
б)
-9 -2 5 0
1 4 -5 -6
-4 -7 2 3
6 -1 -8 -3
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а)
0 1 -4
-5 -1 3
2 -3 -2
б)
-9 -2 5 0
1 4 -5 -6
-4 -7 2 3
6 -1 -8 -3