I passed the ISEF-K!

I passed ISEF-K by the 1st place! So now I can go ISEF — it will be held on Pittsburg this year –.

FINALLY. I’ve tried this for 2 years… and now I passed!

Heejun Lee

Hi Everyone! I think we need more active people in CODEX! Everybody, enjoy my codex, and comment!

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