Unusual animation start

Hello,

I wanna play animation with 5 frames, but only two first frames played in first loop, 3-5 frames in all next loop, for example

question

first loop (start loop) = 1-5 frame
next loop (each) = 3-5 frame

How is it the easiest to do?

You can use 2 animations :
1)You start the first one, with 5 frames
2)When it’s complete, it starts the second one with 3 frames (using the onComplete event). This one is looping.

If someone knows an easier way, feel free to react.