Study the given information carefully and answer the question given below:

Shikhar walked 18 km towards east, took right turn and walked 20 km. He then took a left turn and walked 25 km. Then, he took a left turn walked 20 km. Then, he took a right turn and walked 10 km. then, he took a left turn and walked 24  km. Finally he took a left turn and walked 35 km.

How far was he from the starting point?