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a=[3,5,4,0,9,2,7,8,5] b=[3,5,4,0,9,7,8,2,5] c=[3,5,4,0,9,7,2,8,5] d=[1,2,3,4,5,6,7,8,9] ad=[a[i]*d[i] for i in range(len(a))] bd=[b[i]*d[i] for i in range(len(b))] cd=[c[i]*d[i] for i in range(len(c))] print sum(ad)%11 print sum(bd)%11 print sum(cd)%11
9 9 4