How can i find x, y coordinates of two movieclips' intersection?

There is a movieclip that its shape is like a cloud, not a geometrical shape. And there is a line over other movieclip. I want to find x, y coordinates the first and last intersection of line and the movieclip. I attach the file. I want to find A and B point x, y coordinates.Attachment 73935

This is the same thread as before. Someone gave you the answer already.