CLL 16 (U') R U' R U' R' U R' F R2 F' Tags : Pi CLL 15CLL 17 Alternate Algorithms(U) F R2 U' R2 U R2 U R2 F'(U') F R' F' R U' R U R' U R' F R F'SetupF R2 U' R2 U' R2 U R2 F'Recognition