Walking
through the main
entrance of the Bolyai
Institute, you find yourself facing two
statues and some stairs. Walking up the first set of stairs you reach
the so-called "half-floor", which is NOT the first floor where office
140 is located. So you have yet to go up one more level.
After doing that, you have to go left and walk for a long
time.
The corridor turns, you will even cross a staircase, but after all
that, at the end of the corridor, you will find office 140.