You can orient all four edges on the top layer with this,
M' U M' U M' U M' U M U M U M U M U
but it's just as easy to do
F R U R' U' F' U2 F U R U' R' F' U2
The first alg makes no changes to edge permutation and corner orientation. The second orients the corners and cycles the edges.
By the way, what is the 3 look solve method?