An airplane starting from airport A flies 470 km east, then 317 km at 57.3 degrees west of north, and then 492 km north to arrive finally at airport B. The next day, another plane flies directly from A to B in a straight line. In what direction should the pilot travel in this direct flight? Use counterclockwise as the positive angular direction from due east, between the limits of -180 degrees and 180 degrees. Assume there is no wind during these flights. Answer in units of degrees.