Decode. Image can be found here: https://ejudge.cs.msu.ru/code.png
Submit decoded text.
Here is the official answer (translated):
Image contains message encoded using JAB Code. To solve this problem, consider downloading picutre and write your own or use existing JAB decoder. Answer is in the archive (with answers).
So what is JAB code? Basically, it's just like QR code but it's using colors!
Because of this, you can encode more details in the same amount of square (on screen, compare to QR code).
Here you can create yours or explore this further: https://jabcode.org/
Scroll down to see the answer:
The Zen of Python, by Tim Peters Beautiful is better than ugly. Explicit is better than implicit. Simple is better than complex. Complex is better than complicated. Flat is better than nested. Sparse is better than dense. Readability counts. Special cases aren't special enough to break the rules. Although practicality beats purity. Errors should never pass silently. Unless explicitly silenced. In the face of ambiguity, refuse the temptation to guess. There should be one-- and preferably only one --obvious way to do it. Although that way may not be obvious at first unless you're Dutch. Now is better than never. Although never is often better than *right* now. If the implementation is hard to explain, it's a bad idea. If the implementation is easy to explain, it may be a good idea. Namespaces are one honking great idea -- let's do more of those!