The card contains a memory for storing PIN data of {TAIL ~ a predetermined number} of {HEAD ~ characters} 
The card contains a memory for storing PIN data of { TAIL ~ a predetermined number } of { HEAD ~ characters }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD