Duplicate movieclip 30pixels away from each other

Hi, I’m using this code to duplicate a movieclip:

  for (i=0;i<10;i++) { 
	  _root.lane.duplicateMovieClip("lane"+i, i); 
   
   
   i++
} 

Now, I want each duplicate to have their _x position 30 pixels away from each other.

Basically, they would all be in a row, I’m sure it’s simple so how can I put them all in a row?

I hope I explained well enough, thanks for any help.