Kirti starts from point A and walks 1 km towards east. She takes a right turn and walks 2 km. She then takes a left turn and walks 3 km. She takes a right turn and walks 4 km. She takes a left turn and walks 5 km. She takes a final left turn and walks 6 km to reach a point B. How far (shortest distance) and towards which direction should she walk in order to reach point A again? (All turns are 90 degree turns only unless specified otherwise.)