This is your cycle: ABCDEFGHIJK.
This is your solution: Do a U perm to cycle ABC. Then another to cycle ADE. Then another to cycle AFG. Then another for AHI. Then a final one for AJK. That's 3-cycle. Before your U perms you set the edges up into "U perm position" (generally speaking UL, UF and UR), then you undo the setup moves after your U perm, you should be able to understand setup moves easily since you're doing M2.
Oh, and there's also the 4-move <MU> 3-cycle.
