EG-1 21 (U) F' U2 R U2 R' U2 F Tags : P EG-1 20EG-1 22 Alternate Algorithms(U') R U' R2 F2 R F' U R U R'(U) R U R’ U F’ R U R’ U’ R U R2 F2 R(U) R U R’ U F’ R U R’ U’ R’ F2 R2 U’ R’SetupRecognition