# Hard > These challenges simply don't tell you what to do at all, these are supposed to be hard for first/second year CSE students. ## Yeet1.js The grand lords of `badcode` Jonathan and Victor have produced another very good example of JS fuckery. `Yeet1.js`! Have fun figuring out how it works! The result is the input for the js file! ### Some tips * You can only run the file using node, I've tested it with v10.x, but i think 8.x and 9.x work as well. * You need to wrap the flag in the flag tags. `flag{input}`, since the flag is just the input, and not a normal flag. * You can find the challenge [here](https://gist.githubusercontent.com/jonay2000/1bc3348d1a5c974b1a73f9da91749c82/raw/654e93493bb56a9d45df11f208724a96318dff56/yeet1.js)! * If the flag doesn't work, try the result instead... ## Finally Yeah, you are a master now, and I hope you had fun! - J