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Day 01: Just Another Bar Code
Challenge
After a decade of monochromity, Santa has finally updated his infrastructure with color displays.
Solution
After some Googling, we find JAB Code (Just Another Bar Code) which is a high-capacity 2D color bar code, which can encode more data than traditional black/white (QR) codes.
Their online decoder gives us the flag
Flag
HV18-L3ts-5t4r-7Th3-Phun-G33k