Case 0

Case 0-a

  • Left to Right : R U’ R’

  • Right to Left : F’ U F

Case 0-b

  • Right to Left : ( R’ F ) ( R F’ )

  • Left to Right : ( F R’ ) ( F’ R )

Case 1

  • Right to Left : R U R’

  • Left to Right : F’ U’ F

Case 2

Case 2-a

Case 2-b

Case 3

Case 3-a

Case 3-b