[Writeup](https://srikavin.me/blog/posts/5d87dbe86e58ed23d8620868-nactf-2019-loopy-0-1#Loopy--0-1)

Original writeup (https://srikavin.me/blog/posts/5d87dbe86e58ed23d8620868-nactf-2019-loopy-0-1#Loopy--0-1).