we can use Euler phi function to generate seed. ( [http://wolframalpha.com/input/?i=Euler+phi+%284529255040439033800342855653030016000%29](http://wolframalpha.com/input/?i=Euler+phi+%284529255040439033800342855653030016000%29) )
[https://github.com/kimtruth/CTF-write-up/blob/master/2018/Harekaze/Fight/solve.py](https://github.com/kimtruth/CTF-write-up/blob/master/2018/Harekaze/Fight/solve.py)