1: Challenge/response
2 Points ‚óŹ Basic recursion

There's a weird other sandbox at http://sandbox.multiwack.science:8000/. It looks like it always runs with an input buffer containing a single integer, and if you make a program that outputs the correct integer, it gives you a flag. However, the integer it wants seems to depend on the integer given to you somehow? I don't know what's going on, maybe you can write some program to do things here.