Example Program Data for nag_sort_ex04
 12      : n (number of data elements)
  2  3.0
  1  4.0
 -1  6.0
  0  5.0
  2  2.0 
 -2  7.0
  0  4.0
  1  3.0
  1  5.0
 -1  2.0
  1  0.0
  2  1.0 : End of a, b (integer and real data vectors)