CLL - L1 — 2 × 2 CLL Algorithms

CLL - L1
(R' U R') U2 (R U' R') U (R U' R2)
(R2 U' R) U2 (R' U2 R U' R2)
y (R U R' U R U' R') U (R U' R' U R U2 R')
y' (R U' R U') (R U2 R' U R' U R')
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