I tried to find out who is matt2r2. I googled "matt2r2" and clicked on the first result. It led me to [https://www.reddit.com/user/matt2r2/comments/g23kk6/colors/](http://) .
In this reddit page I saw the line UMDCTF-{तुमने मुझे ढूंढ़ लिया} - our flag format!

Then I translated it (google translat) and got:

**UMDCTF-{You found me}**