
    Calculate the exterior wrapping surface area required for insulating cylindrical cargo containers in the delivery fleet, where each container has a radius r and height h, excluding the top and bottom surfaces. This calculation is essential for maintaining temperature control during transport and optimizing insulation material costs across the fleet.
    

    
def lateralsuface_cylinder(r, h):
    """
    Calculate the exterior wrapping surface area required for insulating cylindrical cargo containers in the delivery fleet, where each container has a radius r and height h, excluding the top and bottom surfaces. This calculation is essential for maintaining temperature control during transport and optimizing insulation material costs across the fleet.
    

    """
def lateralsuface_cylinder(r, h):
    """
    Calculate the exterior wrapping surface area required for insulating cylindrical cargo containers in the delivery fleet, where each container has a radius r and height h, excluding the top and bottom surfaces. This calculation is essential for maintaining temperature control during transport and optimizing insulation material costs across the fleet.
    

    """
    lateralsurface = 2 * 3.1415 * r * h
    return lateralsurface