Gandalf the Grey started in the Forest of Mirkwood at a point with coordinates (0,2)(0,2) and arrived in the Iron Hills at the point with coordinates (1,5)(1,5). If he began walking in the direction of the vector v=4i+1jv=4i+1j and changes direction only once, when he turns at a right angle, what are the coordinates of the point where he makes the turn.