
    Calculate the total wall surface area that requires protective coating in a vehicle's cubic maintenance bay, given the length of one side of the bay in meters. The coating must be applied to all four vertical walls of the bay, excluding the floor and ceiling surfaces.
    

    
def lateralsurface_cube(l):
    """
    Calculate the total wall surface area that requires protective coating in a vehicle's cubic maintenance bay, given the length of one side of the bay in meters. The coating must be applied to all four vertical walls of the bay, excluding the floor and ceiling surfaces.
    

    """
def lateralsurface_cube(l):
    """
    Calculate the total wall surface area that requires protective coating in a vehicle's cubic maintenance bay, given the length of one side of the bay in meters. The coating must be applied to all four vertical walls of the bay, excluding the floor and ceiling surfaces.
    

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