Consider the following disk request queue: $20,9,22,5,12$ with the Read$-$write head initially at track $10$ and the tail track being at $25.$ The assumption for SCAN and C$-$LOOK: We assume that the disk head starts moving toward track $0$ first.

$(2$pts$)$ What is the total head movement of the SSTF algorithm?

$(2$pts$)$ What is the total head movement of the SCAN algorithm?

$(2$pts$)$ What is the total head movement of the C$-$LOOK algorithm?