
    Calculate the total surface area that needs to be monitored for a cubic secure transaction vault given the length of its side, to determine the required coverage for security surveillance sensors. The monitoring system must account for all six faces of the vault to maintain complete tamper detection coverage.
    

    
def surfacearea_cube(l):
    """
    Calculate the total surface area that needs to be monitored for a cubic secure transaction vault given the length of its side, to determine the required coverage for security surveillance sensors. The monitoring system must account for all six faces of the vault to maintain complete tamper detection coverage.
    

    """
def surfacearea_cube(l):
    """
    Calculate the total surface area that needs to be monitored for a cubic secure transaction vault given the length of its side, to determine the required coverage for security surveillance sensors. The monitoring system must account for all six faces of the vault to maintain complete tamper detection coverage.
    

    """
    surfacearea = 6 * l * l
    return surfacearea