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Newsgroups: comp.lang.ada
Date: Tue, 17 Mar 2020 10:10:20 -0700 (PDT)
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Subject: multidimensional sort
From: Optikos <ZUERCHER_Andreas@outlook.com>
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Xref: reader01.eternal-september.org comp.lang.ada:58211
Date: 2020-03-17T10:10:20-07:00
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This StackOverflow answer should ba significant step to solving your problem:

https://stackoverflow.com/questions/17548979/defining-multiple-elements-of-a-multi-dimensional-array