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