Data of {TAIL ~ the compressed extra character} is registered into a predetermined area of {HEAD ~ the storage} 
Data of { TAIL ~ the compressed extra character } is registered into a predetermined area of { HEAD ~ the storage }
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD