rank {{3,2,1,7,5,6,8,9,4},{4,7,9,2,1,8,3,5,6},{8,6,5,9,4,3,2,1,7},{5,3,2,1,6,9,4,7,8},{1,9,8,3,7,4,5,6,2},{7,4,6,8,2,5,1,3,9},{2,5,4,6,9,1,7,8,3},{9,1,3,4,8,7,6,2,5},{6,8,7,5,3,2,9,4,1}}

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