$(2)$ Suppose that the range of a disk's cylinders is $1,200$ and une disk nead currently stops at cylinder $55.$ Let the disk queue contain the requests of blocks on cylinders $,99,187,39,124,14,131,65,70.$ Please show how the disk head moves in the SSTF$,$ SCAN, C$-$SCAN, and CLOOK disk scheduling schemes. $(6\%)$