{TAIL ~ A timing system} for swimming race which records, displays, and prints the time of {HEAD ~ race} 
{ TAIL ~ A timing system } for swimming race which records , displays , and prints the time of { HEAD ~ race }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD