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Date: Sat, 12 Dec 2020 22:40:33 -0800 (PST)
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Subject: Re: Advent of code day 12
From: Maxim Reznik <reznikmm@gmail.com>
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Xref: reader02.eternal-september.org comp.lang.ada:60817
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I used interface and tagged types to make solution more interesting :)

https://github.com/reznikmm/ada-howto/blob/advent-2020/md/12/12.md