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2021/day25/remotely-start-sleigh

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+You use all fifty stars to boost the signal and remotely start the sleigh! Now, you just have to find your way back to the surface...
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+...did you know crab submarines come with colored lights?
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+Congratulations! You've finished every puzzle in Advent of Code 2021! I hope you had as much fun solving them as I had making them for you. I'd love to hear about your adventure; you can get in touch with me via contact info on my website or through Twitter.
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+If you'd like to see more things like this in the future, please consider supporting Advent of Code and sharing it with others.
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+To hear about future projects, you can follow me on Twitter.
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+I've highlighted the easter eggs in each puzzle, just in case you missed any. Hover your mouse over them, and the easter egg will appear.
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+You can [Shareon Twitter Mastodon] this moment with your friends, or [Go Check on Your Calendar].