3
0 0 0
1 1 1
0 0 0
1 1 1
0 0 0
1 1 1
1 1 1
1 1 1
1 1 1
例如:
矩阵: a b 和矩阵 1 2 相加和为 a+4 b+3
c d 3 4 c+2 d+1
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