web 5

First enter the site http://123.206.87.240:8002/web5/index.php

After entering you will see

 

 Then click F12 will open the background

 

 Then you will find there is a bunch of stuff and then go through this search is jsfuck and then find out what is jsfuck (https://blog.csdn.net/qq_36539075/article/details/79946099)

Then know

And then copy this string of characters and then put them into the console

Then click the Enter

 

 

 Then you know the flag