syntax error in actionscript

[surreal5335]

I am trying to create 3D rotation gallery, but I am getting an error stating I am missing a brace in my code. Although I cant imagine how a brace is missing. I went through a video tutorial and my code is exactly as his.

I have linked up the external a.s. file through the class but still the problem persists.

package {
	
	import gs.*;
	import gs.easing.*;
	import flash.display.*;
	import flash.events.*;
	
	public class photopanels extends MovieClip {
		
		public function photopanels(): void {
			
			addEventListener(Event.ENTER_FRAME, loop);
		}
		
		private function loop(e:Event):void {
			
			var distx:Number = mouseX /600;
			var disty:Number = mouseY /500;
			Tweenlite.to(con, 2, {
						 rotationY:(-70 + (140*distx))
						 rotationX:(70 - (140*disty))
						 ease:Expo.easeOut
						 });
		}
	}
}

error:

1084: Syntax error: expecting rightbrace before rotationX.
rotationX70 - (140*disty))

not sure what I could be doing wrong.

Thanks a lot in advance for your help