ZBLL PI 67
#Algorithm
1R' U2 R U R' U R U2' R U R' U R U2' R' U2
2U' R' U' R U' R' U2 R2 U2 R' U' R U' R' U
3U R U2 R' U' R U' R2' U' R U' R' U2' R U'