sample_rua.txt

5x5 real sample matrix (1-based indexing)                                               
             9             1             1             3             0
RUA                        5             5            12             0
(10I8)          (12I6)          (5E16.8)          (5E16.8)                                
       1       4       7       9      11      13
     1     2     5     2     3     5     1     3     1     4     4     5
  19.0000000e+00  12.0000000e+00  12.0000000e+00  21.0000000e+00  12.0000000e+00
  12.0000000e+00  21.0000000e+00  16.0000000e+00  21.0000000e+00   5.0000000e+00
  21.0000000e+00  18.0000000e+00