You are at the entrance of washroom facing the wall. Slightly move to your right and walk through the door which is open. After entering the room, walk straightly towards the wall. Now turn right and to the end of the hallway. Now you are again facing the wall at the end of the hallway. From that point turn left and walk straightly till you find a room with an open door to your right. Walk through that door. Now exactly at the entrance of the door to the room will be the end point.