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