You are in front of the desktop, turn your back side you will find many desks and chairs, move towards your right corner, go straight, go further until you cross all cabins. At the last cabin in front of u there is a brown color door open, go near the door and exit the door, once you exit take your right turn you will find a way, go straight in that way, cross all the doors till the end. At the end of the way take your left turn, move forward and stop beside the brown color door, this is your final destination.