y' // inspection
U' R' U' F R' L2' D2 // cross
R U R' U y' R' U' R // 1st pair
u' D R' U R U' R' U' R // 2nd pair
y' U' R U' R' U R U' R' U R' U' R // 3rd pair
U R U R' U' R U R' // 4th pair
U2 U' R U' R2' D' r U r' D R2 U R' // OLL
U' U' U' U F R U' R' U' R U R' F' R U R' U' R' R R' F R F'