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