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