Create movie clips with loop

programming flash
1

So basically, this is how I’m adding one movie clip to the stage.

var balloon_mc1 = new balloon();
this.addChild(balloon_mc1);

How do I do this for 100 of these movie clips, without typing
var balloon_mc1 = new balloon();
this.addChild(balloon_mc1);

var balloon_mc2 = new balloon();
this.addChild(balloon_mc2);

var balloon_mc3 = new balloon();
this.addChild(balloon_mc3);

etc, etc