version clock and counterclockwiseversion clock and counterclockwise
counterclockwise
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R U R' U R U2 R' |  |
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clockwise
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R U2 R' U' R U' R' |  |
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Memorization: R U R' U R U2 R': R R' R R' interwoven with U U U2
Memorization: R U2 R' U' R U' R': R R' R R' interwoven with U2 U' U', actually the reverse of the previous one