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This answer is officially recognized as an alternative solution and rewarded with 0.103 SBD (50% of SBD payout).
I hope you'll participate in my new contest:
https://steemit.com/crackthecode/@barcisz/crack-the-code-2-contest-with-sbd-to-win

Unfortunately, "Start 1000000 bubbles" is not the official answer. I hope you'll try again!

Two clues have been added in the post and in the comments.

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