Thank you for your answer. But the last columns are classes and totals of classes, so I only want to find the maximum of the totals of classes. I should select only subset of the @values and put in array then, but this doesn't work:

push(@totals, values[1], values[3], values[5], values[7]);
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Is there a way to do this? I want to find the class for which the total of class is the highest, and print the class name..