The Yang Style Long Form is comprised of 108 moves(or gestures). There is a flow between these moves which we call "processes". While there is an actual list of named moves, the flow of the form, continuously moving, could, in theory, reduce this number down to "one (long) move"!
The 108 is broken down into 3 sections, or "loops". This is the 1st loop comprising of 20 moves. The last move is called "Embrace Tiger, Return to Mountain". The form may end here, or with a slight modification, flow right into the 2nd loop, and the 3rd, without stopping.