
    Calculate the total wall surface area requiring temperature-controlled insulation for a cubic delivery truck cargo space, given the length of its interior edge, to ensure proper climate control for sensitive deliveries. The insulation must cover all four vertical walls of the cargo space, excluding the floor and ceiling.
    

    
def lateralsurface_cube(l):
    """
    Calculate the total wall surface area requiring temperature-controlled insulation for a cubic delivery truck cargo space, given the length of its interior edge, to ensure proper climate control for sensitive deliveries. The insulation must cover all four vertical walls of the cargo space, excluding the floor and ceiling.
    

    """
def lateralsurface_cube(l):
    """
    Calculate the total wall surface area requiring temperature-controlled insulation for a cubic delivery truck cargo space, given the length of its interior edge, to ensure proper climate control for sensitive deliveries. The insulation must cover all four vertical walls of the cargo space, excluding the floor and ceiling.
    

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