{TAIL ~ A non transitory computer readable medium} that stores {HEAD ~ a program} that, when executed by a computer, performs the steps of: 
{ TAIL ~ A non transitory computer readable medium } that stores { HEAD ~ a program } that , when executed by a computer , performs the steps of :
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH