Example Program Data for nag_sort_ex05
12  3     : m, n (size of data matrix)
 6  5  4 
 5  2  1
 2  4  9 
 4  9  6 
 4  9  5 
 4  1  2 
 3  4  1 
 2  4  6 
 1  6  4 
 9  3  2 
 6  2  5 
 4  9  6  : End of a (data matrix)