Run with python3 main.py
Expected output:
Destination added upwards to floor 2
Going to floor 2
Destination added downwards to floor 1
Destination added upwards to floor 5
Destination added upwards to floor 3
Destination already existing
Going to floor 3
Going to floor 5
Switching direction to Downwards
Going to floor 1
All target reached
Weight exceeded. Could not add person
Destination added upwards to floor 5
Switching direction to Upwards
Going to floor 5