Dave,
You have a hash of arrays; each array is the same length; each array represents a column; the hash key for an array is the number of the column (starting at zero) that it represents. Because of this nice regularity, you can use a for loop like above and print out each row (starting from 0) with a simple print statement. (Actually, it would be even simpler to have an array of arrays, but not that much simpler for it to be worthwhile for me to go back and edit code from my mobile device.)
And since I'm not using a "real" keyboard at the moment, I'm not going to write out any lines of code. However, I probably shouldn't: You need to have the perl skills to do this relatively simple task. If you can't do this, then you probably don't understand what the above code is doing. You need to understand that first.
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