def __init__(self, front, back, left, right, top, bottom):
        """ initializes all sides of a cube with colors """
        self.front  = front
        self.back   = back
        self.left   = left
        self.right  = right
        self.top    = top
        self.bottom = bottom
 initializes all sides of a cube with colors 
recipes/Python/578454_Puzzle_Four_cubes_different_colors_their/recipe-578454.py