[Original writeup](https://github.com/BaadMaro/CTF/tree/main/HackPack-CTF-2021/%22N%22ot%20%22G%22am%22I%22ng%20a%22N%22ymore%20in%20%22X%22mas) (https://github.com/BaadMaro/CTF/tree/main/HackPack-CTF-2021/%22N%22ot%20%22G%22am%22I%22ng%20a%22N%22ymore%20in%20%22X%22mas).