Look on the bright side,
When you get the job you're after you just punch the buttons on the FMGS/FMS and follow the green/magenta line!
ATPL exams are a pain in the ar$e and are there to filter out those who can't be bothered.
Oh, and don't try to go from the north pole to the south pole in a 777 unless you have the software fix. One of our 777 crews tried it and the FMS gave up and crashed trying to calculate an infinite number of routes!
Boeing fixed that one quite quickly!