Upon {HEAD ~ selection} of {TAIL ~ a new denomination}, the coins of the previously selected denomination left in the packaging section are removed, and packaging of coins of the newly selected denomination is automatically started 
of
Upon { HEAD ~ selection } of { TAIL ~ a new denomination } , the coins of the previously selected denomination left in the packaging section are removed , and packaging of coins of the newly selected denomination is automatically started
OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH