### Challenge

```
Okay, you already know what to do with it...
```

File : task.py

### Solution

We can use `Berlekamp Massey Algorithm`

to find the branch if we know the segment of LFSR generate sequence.

Besides, we know that the code read the file `flag.html`

, we can guess there is the flag starts with `VolgaCTF{`

inside it.

This `VolgaCTF{`

contains 72 bits, It’s enough to recover the register and branches.

Therefore, just brute force to search the index of well-known string `VolgaCTF{`

If we find the location of string and recover well, the output file will end with `</html>`