The pointer value changes over a period are labeled {HEAD ~ Extra Long Mega Frame} which consists of {TAIL ~ n Mega Frames} 
The pointer value changes over a period are labeled { HEAD ~ Extra Long Mega Frame } which consists of { TAIL ~ n Mega Frames }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL