rubiks-flip front edge swap l and r edge

This algorithm will rotate the whole front edge and swap all "L" and "l" edge pieces to their "R" and "r" sides.

 

r2 B2 U2 l U2 r' U2 r U2 F2 r F2 l' B2 r2

 

None of these moves are slices, r2 means both r & R are spun at the same time.

Done