# Tweets of December 23 2021


> Just had my 5th coffee, so I can rightly say, "Number 5 is alive"\. Let's do some coding

[Thu Dec 23 10:53:54 +0000 2021](https://twitter.com/miekg/status/1473970112751357953)

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> If A2 is A0 folded twice, how about envelopes? Is there some A\* thing going there as well or just Ax\+mm??

[Thu Dec 23 20:15:25 +0000 2021](https://twitter.com/miekg/status/1474111423735377927)

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Replying to [@wupeka](https://twitter.com/wupeka/status/1474112774259281928)

> This is amazing 👍

[Thu Dec 23 20:21:54 +0000 2021](https://twitter.com/miekg/status/1474113052832419843)

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> RT @wupeka: @miekg There is the 'basic' A series starting with A0 \- 841x1189, and there's the 'envelope' C series starting with C0 \- 917x12…

[Thu Dec 23 20:22:04 +0000 2021](https://twitter.com/miekg/status/1474113095459086337)