You need a third body to pull that off, and I think Mars’s moons are too small to be useful for this. Looking at practical considerations rather than just theo

You need a third body to pull that off, and I think Mars’s moons are too small to be useful for this. Looking at practical considerations rather than just theoretical, you also need the ability to perform course corrections along the way. The initial trajectory won’t be precise enough to make it work from just the departure burn.