((3,-1,1,2,-4),(-1,3,-2,5,-3),(5,2,4,-5,1),(-1,-3,4,5,1))*((-2,5,2),(3,-1,-5),(1,-4,-1),(-4,0,-4),(-4,5,3)) - ((3)* ((4,-1,4),(0,2,-3),(4,2,5),(-4,0,2)))

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