'A' started from his house and walked 10 m towards East, where his friend 'B' joined him. They together walked 15 m in the same direction. Then 'A' turned left while 'B' turned right and travelled 3 m and 3 m respectively. Again 'B' turned left to travel 6 m followed by 9 m to his right to reach his office. 'A' turned right and travelled 14 m to reach his office. What is the shortest distance between the two offices?