{TAIL ~ Each set} of resources is allocated only for the period of time needed to perform {HEAD ~ the required function} 
{ TAIL ~ Each set } of resources is allocated only for the period of time needed to perform { HEAD ~ the required function }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD