Space Between Two Span Elements in Same Paragraph

Hi

     I m creating an application using TextLayout Framework in FlexBuilder3(Sdk3.4).

Code is like

          var paragraphElement:ParagraphElement= new  ParagraphElement();

          var spanElement1:SpanElement= new SpanElement():

          spanElement1.text = "A";

          paragraphElement.addChild(spanElement1);

          var spanElement2:SpanElement= new SpanElement():

          spanElement2.text = "A";

          paragraphElement.addChild(spanElement2);

     OutPut of above code is Like:-  AB.

But i want Space between these two spans is of   margin= 27.

So how can i create space between these two spans. if anybody know please reply.

Thanks