
    Calculate the total interactive surface area available for displaying educational content in a virtual 3D learning cube, where students can engage with personalized materials on each side face (excluding top and bottom), given the edge length of the cubic learning space. The interactive area should only include the four vertical faces where content can be displayed, as the top and bottom faces are reserved for navigation controls.
    

    
def lateralsurface_cube(l):
    """
    Calculate the total interactive surface area available for displaying educational content in a virtual 3D learning cube, where students can engage with personalized materials on each side face (excluding top and bottom), given the edge length of the cubic learning space. The interactive area should only include the four vertical faces where content can be displayed, as the top and bottom faces are reserved for navigation controls.
    

    """
def lateralsurface_cube(l):
    """
    Calculate the total interactive surface area available for displaying educational content in a virtual 3D learning cube, where students can engage with personalized materials on each side face (excluding top and bottom), given the edge length of the cubic learning space. The interactive area should only include the four vertical faces where content can be displayed, as the top and bottom faces are reserved for navigation controls.
    

    """
    LSA = 4 * (l * l)
    return LSA