LISP bad SSGET lisp value 'error

The routine below is working while only selecting only the block "INSERT" but once a add the DXF code, see red bold below.

any idea guys, i am totally lost. i am trying to select arrows with ScaleX -1

T.I.A.

(defun C:[color=lime][u][i][b]YOUCOMMAND[/b][/i][/u][/color](/ aaaa bbbb cc cclist pt lay scfr scto)
 (defun FilterBlkNameX(bbbb valu)
   (setq aaaa 0 newSet(ssadd))
   (while(< aaaa (sslength bbbb))
     (setq cc(ssname bbbb aaaa))
     (setq cclist(entget cc))
     (if(= "INSERT" (cdr(assoc 0 cclist)))
       (progn
         (if(= (strcase valu)(strcase (cdr(assoc 2 cclist))))
           (ssadd cc newSet)
         )
       )
     )
     (setq aaaa(+ aaaa 1))
   )
   newSet
 )
 (setvar "cmdecho" 0)
 (setq bbbb(ssget "X" (list(cons 0 "INSERT[color=black]")(cons 41 -1.0))))[/color]    
 (if(and bbbb(> (sslength bbbb) 0))(setq bbbb(FilterBlkNameX bbbb "[u][i][b][color=lime]BLOCKNAME[/color][/b][/i][/u]")))
 (if (and bbbb (> (sslength bbbb) 0))
  [color=cyan] [b](progn[/b][/color]
[b][color=cyan]      (setq lay "0")[/color][/b]
[b][color=cyan]      (command "change" bbbb "" "Properties" "LAyer" lay "")[/color][/b]
[b][color=cyan]      (setq scfr(list 0.000000 0.000000 0.000000))[/color][/b]
[b][color=cyan]      (setq scto 0.500000)[/color][/b]
[b][color=cyan]      (command "SCALE" bbbb "" scfr scto)[/color][/b]
[b][color=cyan]    )[/color][/b]
[b][color=cyan]  )[/color][/b]
 (setvar "cmdecho" 1)
 (princ)
)
(princ "\n [u][i][b][color=lime]YOURCOMMAND[/color][/b][/i][/u] to run the program.")
(princ)

routine updated for everyone

(cons 41 -1.0)

have a look at dxf group here :40-48

have a look at dxf group here :40-48

got it.. many thanks buddy. so i dont need to include double quotes.

got it.. many thanks buddy. so i dont need to include double quotes.

you are welcome. keep practicing & good luck