Right now, you're facing towards the closed door. Slightly turn left and exit the room through the opened door which is in front of you. Now, slightly turn right and enter into the room which is in front of you. Now, turn behind and move towards the entrance of the room. Now, slightly turn right and move forward toward the main entrance, which is in front of you and exit the room. Now, turn right and move forward till you reach an opened door on the right. Now, turn right and enter into the room and that is the end point.