3rd Floor

You could see the Robotics Laboratory (F311 - F312) upon climbing the stairs at the right side of the elevator. 

This hallway has the classrooms of F302, F303, F304, F305, F306, F307, F308, F309, F310.  However, fronting the F310 is the comfort room. 

At the end of the hallway, you could see rooms F300 and F301, including stairs going up to the 4th and down the 2nd floors.