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Japanese task description, input file name "japcross.txt" and its content clearly showed us that we need to solve a japanese crossword.

Like a true programmer I found japanese crosswords solver with command line interface :)

Here are simple steps to get the flag:

  1. Convert crossword to solver input format (see jc.txt);
  2. Run solver and get result (see jc.png);
  3. Easy to understand that it's QR-code. Because I'm a web applications developer I wrote the simple python html generator (qr-make.py) which created page 1.html to me;
  4. And finally read QR-code in any way.

Flag is longing for you drove me through the stars. Alexei Tolstoy.

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