Sparse Harwell Boeing written with create_HB subroutine                   foula1
             3             1             1             1             0
rra                        3             1             3             0
          (10i8)          (10i8)            (6e13.5)            (6e13.5)
       1       4
       1       2       3
 3.46286e-001-2.82477e-002 5.76720e-005