U' U' r' D' r' U' r F r
y R' u U' U' r U' U' r'
U R' z' r' D' x x B' (r2 x') r U' r' U r B r' U' (r2' x) (3r2 x') U'
x' (L2 x) U 3r2' U 2L' U r'
3r' U' 2L' U' r 3r2' r2 U' U' r2'
U r U' (r' 2L') U2 r
x 3l U (z' y') u' U' R U' R' u D R'
3u' u U' L' U L U' R U' R' y 3d R' U R u'
y' R U' R' u' R U R' u
U' U' R U' R' u' R U' R' u
U U R' U' U' R U R' U' R
y' R' F U F' R
U' R U' R' F R' F' R
3d' R U' U' R' U' R U R'
U R U R' U R U' U' R' F R U R' U' F'
x R2' D2 R U R' D2 R U' 3l U