Sumantra starts from Point Y and drives 11 km towards the South. He then takes a left turn, drives 27 km, turns right and drives 39 km. He then takes a right turn and drives 10 km. He takes a right turn and drives 21 km. He then turns left, drives 17 km, turns left and drives 12 km to stop at Point Z. How far (shortest distance) and towards which direction should he drive in order to reach Point Y again? (All turns are 90 degree turns only unless specified.)