```    Program f08lsfe

!     F08LSF Example Program Text

!     Mark 26 Release. NAG Copyright 2016.

!     .. Use Statements ..
Use nag_library, Only: nag_wp, zgbbrd
!     .. Implicit None Statement ..
Implicit None
!     .. Parameters ..
Integer, Parameter               :: nin = 5, nout = 6
Character (1), Parameter         :: vect = 'N'
!     .. Local Scalars ..
Integer                          :: i, info, j, kl, ku, ldab, ldc, ldpt, &
ldq, m, n, ncc
!     .. Local Arrays ..
Complex (Kind=nag_wp), Allocatable :: ab(:,:), c(:,:), pt(:,:), q(:,:),  &
work(:)
Real (Kind=nag_wp), Allocatable  :: d(:), e(:), rwork(:)
!     .. Intrinsic Procedures ..
Intrinsic                        :: max, min
!     .. Executable Statements ..
Write (nout,*) 'F08LSF Example Program Results'
!     Skip heading in data file
Read (nin,*) m, n, kl, ku, ncc
ldab = kl + ku + 1
ldc = m
ldpt = n
ldq = m
Allocate (ab(ldab,n),c(m,ncc),pt(ldpt,n),q(ldq,m),work(m+n),d(n),e(n-1), &
rwork(m+n))

!     Read A from data file

!     Reduce A to upper bidiagonal form

!     The NAG name equivalent of zgbbrd is f08lsf
Call zgbbrd(vect,m,n,ncc,kl,ku,ab,ldab,d,e,q,ldq,pt,ldpt,c,ldc,work,     &
rwork,info)

!     Print bidiagonal form

Write (nout,*)
Write (nout,*) 'Diagonal'
Write (nout,99999) d(1:min(m,n))
Write (nout,*) 'Superdiagonal'
Write (nout,99999) e(1:min(m,n)-1)

99999 Format (1X,8F9.4)
End Program f08lsfe
```