The head of a moving head disk with $200$ tracks, numbered $0$ to $199$, has just finished a request at track $125$, and currently serving a request at track $143$. The queue of requests is given in the FIFO order as $86,147,91,177,94,150,102,175,130$. What will be the total number of head movements required to satisfy these requests for SCAN algorithm?
- $259$ cylinders
- $169$ cylinders
- $154$ cylinders
- $264$ cylinders