def main():
    'Main program execution.'
    (n, h1, h2, h3) = generate_ammonia_sites()
    nList = [[1, 2, 3], [0], [0], [0]]
    return ([n, h1, h2, h3], nList)
Main program execution.
def main():
    
    (n, h1, h2, h3) = generate_ammonia_sites()
    nList = [[1, 2, 3], [0], [0], [0]]
    return ([n, h1, h2, h3], nList)