As a result, the workload of the distribution management of {HEAD ~ the host key} is reduced and the speed of {TAIL ~ the host key distribution} is increased 
As a result , the workload of the distribution management of { HEAD ~ the host key } is reduced and the speed of { TAIL ~ the host key distribution } is increased
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH