OLL 56

http://www.speedsolving.com/wiki/images/1/1f/O56.gif

OLL r U r' U R U' R' U R U' R' r U' r' [X]
OLL r' U' r U' R' U R U' R' U R r' U r [X]
OLL L F L' U R U' R' U R U' R' L F' L' [X]
OLL F R U R' U' R F' r U R' U' r' [X]
OLL r U r' U R U' R' M' U R U2 r'