{HEAD ~ The contents} of the B register is then shifted to the right by the proper number of places so that the exponent difference between the numbers in {TAIL ~ the A and B registers} is zero.  
{ HEAD ~ The contents } of the B register is then shifted to the right by the proper number of places so that the exponent difference between the numbers in { TAIL ~ the A and B registers } is zero .
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH