a few values are changing.
      ! note NAMELIST input is very flexible, and allows changing just regions of an array with
      ! array syntax, for example.
      read(10,case,iostat=ios,iomsg=message)
      if(ios .ne. 0)then
         write(*,*)'IOSTAT:',ios,trim(message)
         if( .not.is_iostat_end(ios) )then
            write(*,*)'E-R-R-O-R:'
            open(unit=6,delim='apostrophe') ! make sure strings get delimited
            write(*,nml=case)
            open(unit=6,delim='none')
  