The system returns the larger denomination coin or {HEAD ~ coins} instead of {TAIL ~ the deposited smaller denomination coins} only when the smaller denomination coin is in its change running out state 
instead of
The system returns the larger denomination coin or { HEAD ~ coins } instead of { TAIL ~ the deposited smaller denomination coins } only when the smaller denomination coin is in its change running out state
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH