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    n,m = map(int,input().split()) a1 = [[0]*m]*n for i in range(n): a1[i] = list(map(int,input().split())) a = numpy.array(a1) s = numpy.sum(a,axis = 0) p = numpy.prod(s) print(p) I'm using this track scirpt with my Neoprene Bags page.