[Fortran] syntaxhighlighter_viewsource syntaxhighlighter_copycode program main  implicit none
  integer(kind=4),parameter :: n = 4
  real(kind=8)              :: a(n,n),b(n),x(n)
  integer(kind=4)           :: i, j, ioerr
  open(100,file='READ.TXT')
  read(100,*)
  do i = 1,n
          read(100,*)(a(i,j),j=1,n)
  end do
  read(100,*)
  do i = 1,n
          read(100,*)b(i)
  end do
  open(200,file='WRITE.txt')
  do i = 1, n
          write(200,"(*(f12.8,1x))")(a(i,j),j=1, n)
  end do
  write(200,"(/,4(f12.8,/))")b
  close(100)
  close(200)
end program main 
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