
    Calculate the total wall surface area of a cylindrical waiting room (excluding floor and ceiling) to determine the required amount of antimicrobial wall coating needed for infection control, where the room has a circular layout with radius r meters and wall height h meters.
    

    
def lateralsuface_cylinder(r, h):
    """
    Calculate the total wall surface area of a cylindrical waiting room (excluding floor and ceiling) to determine the required amount of antimicrobial wall coating needed for infection control, where the room has a circular layout with radius r meters and wall height h meters.
    

    """
def lateralsuface_cylinder(r, h):
    """
    Calculate the total wall surface area of a cylindrical waiting room (excluding floor and ceiling) to determine the required amount of antimicrobial wall coating needed for infection control, where the room has a circular layout with radius r meters and wall height h meters.
    

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