decoding the encoded region in {TAIL ~ accordance} with the skip block designation using {HEAD ~ a processor}, wherein: 
decoding the encoded region in { TAIL ~ accordance } with the skip block designation using { HEAD ~ a processor } , wherein :
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH