{HEAD ~ Header file} 900 is an example of {TAIL ~ an implementation} of header file 304 in FIG 3 
{ HEAD ~ Header file } 900 is an example of { TAIL ~ an implementation } of header file 304 in FIG 3
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH