
    Calculate the total linear distance that hospital cleaning staff must cover along the walls when sanitizing a square isolation room, given the room's standardized side length in meters, to maintain proper infection control protocols between patient admissions.
    

    
def square_perimeter(a):
    """
    Calculate the total linear distance that hospital cleaning staff must cover along the walls when sanitizing a square isolation room, given the room's standardized side length in meters, to maintain proper infection control protocols between patient admissions.
    

    """
def square_perimeter(a):
    """
    Calculate the total linear distance that hospital cleaning staff must cover along the walls when sanitizing a square isolation room, given the room's standardized side length in meters, to maintain proper infection control protocols between patient admissions.
    

    """
    perimeter = 4 * a
    return perimeter