John starts driving south from point A and covers a distance of 14 km. He then turns left and covers a distance of 7 km. He again turns left and covers a distance of 4 km. He then turns left and covers another distance of 4 km. Finally, he turns right and covers a distance of 10 km to reach point B. How far (shortest distance) and in which direction should he drive to reach point A again?  (Unless otherwise specified, all turns are 90 degree turns only.)