Extra Large (XL) Mystery Cache

This is an investigator-style geocache. Imagine that you are a private detective and you have to find out a clue (2 numbers) to find out the geocache! I will show you 2 interesting spots nearby Nyugati Railway Station during your mystery-solving. Be smart and look for every details which I will show/share you! Good luck, Detective! :)

ps.: This idea came from: https://www.youtube.com/watch?v=1sxtMExDIVQ

1. stage (N 47° 30.615 E 019° 03.415): The great Timetable. If you would like to travel from the railway station: you will check out this first. Look for a 2 (eXtra) digit number nearby/on the timetable. The number at stage 1 is: X.

2. stage (N 47° 30.403 E 019° 03.918): The piece of the Berlin Wall. Read the whole story at the spot to find out the real story of the wall. Look for a 2 (Large) digit number nearby the Berlin wall. The number at stage 2 is: L.

With the two extra large number you will need to make simple math methods to find out the final coordinates, which are:

N 47° + {(X + L) * (X * L) - [(X - L) * 19] + 8}

E 019° + {[(2X + 2L) / (2X / 2L)] * [(2X + 2L) / 2X] + 202}