Rubic Cube

class RubiksCube:
    def __init__(self):
        # Initialize a solved Rubik's Cube
        self.cube = [["R", "R", "R"],
                     ["R", "R", "R"],
                     ["R", "R", "R"]]

    def rotate_U(self):
        # Perform a clockwise rotation of the upper face (U)
        self.cube[0][0], self.cube[0][2] = self.cube[0][2], self.cube[0][0]
        self.cube[0][1], self.cube[1][0] = self.cube[1][0], self.cube[0][1]
        self.cube[1][0], self.cube[1][2] = self.cube[1][2], self.cube[1][0]
        self.cube[1][2], self.cube[2][1] = self.cube[2][1], self.cube[1][2]
        self.cube[2][1], self.cube[2][0] = self.cube[2][0], self.cube[2][1]

    def display(self):
        # Display the current state of the cube
        for row in self.cube:
            print(" ".join(row))

# Create a Rubik's Cube instance and perform a move
cube = RubiksCube()
cube.rotate_U()
cube.display()