Import the Right Module

Fix a wrong module name and use it correctly across two files.

A intermediate Linux challenge worth 10 points. Solve it hands-on in a real Linux environment in your browser - no local setup, no fake shells.

The Challenge

Scenario: /home/labuser/lab/main.py should reuse functions from mathutils.py, but it imports a module name that doesn't exist and calls the functions without the module prefix.

Task: Fix main.py (not mathutils.py) so it correctly imports mathutils and computes add(3, 4) + square(5), writing 32 to output.txt. Run check when ready.