Here is the path the Europa Clipper will take once it reaches Jupiter. The orbit of Europa is shown in aqua - the goal is to swing past that 44 times before the spacecraft dies. But to make the Clipper follow its crazy path, the gravity of Jupiter's moons Callisto and Io will be needed!
Callisto's orbit is shown in yellow, and Io is shown in red.
(3/n, n = 3)