Rating:
For Video:https://www.youtube.com/watch?v=iQxLsURS1Mo&list=PL1H1sBF1VAKWkYm2SCXYwyAJsxJuBL4Bd&index=5
For Text:https://medium.com/@johnhammond010/icectf-2018-writeups-32df8e53facd
I don't remember
