local X Drop Length L in

   fun {Length L}
      case L of H|T then 1+{Length T}
      else 0
      end
   end

   fun {Drop X N}
      if {Length X} >= N then
         H|T = X in case N of 1 then T
                       N of 0 then X
                    else {Drop T N-1}
                    end
      else
         nil
      end

   end

   L = [1 2 3 5]

   {Browse {Drop L 0}}
end