Q$4(20)$: a$)$ Consider a disk queue holding requests to the following cylinders in the listed order: $116,22,$

$3,11,75,185,100,87.$ Using the SCAN scheduling algorithm, what is the order that the requests are

serviced, assuming the disk head is at cylinder $88$ and moving upward through the cylinders?

b$)$ Consider a disk queue holding requests to the following cylinders in the listed order: $210,67,11,99,$

$87,90,19,150.$ Using the C$-$SCAN scheduling algorithm, what is the order that the requests are serviced,

assuming the disk head is at cylinder $88$ and moving upward through the cylinders?