__COLL 25__

**y2 (R U R' U R U2' R2') (U' R U' R'**

U2 R)

__COLL 26__

**F (R U' R' U) (R U R' U) (R U' R' F')**

__COLL 27__

**y2 R2 D (R' U2 R) D' (R' U2 R')**

__COLL 28__

**R2' D' (R U2 R') D (R U2 R)**

__COLL 29__

**R' F (R U' R' U') (R U R' F') (R U R'**

U') (R' F R F' R)

__COLL 30__

**(R' U2 R) F (U' R' U' R) U F'**