def main():
    args = sys.argv[1:]
    if ((len(args) == 1) and (args[0] == 'test1')):
        test1()
    elif ((len(args) == 1) and (args[0] == 'test2')):
        test2()
    elif ((len(args) == 1) and (args[0] == 'test3')):
        test3()
    elif ((len(args) == 1) and (args[0] == 'test4')):
        test4()
def main():
    args = sys.argv[1:]
    if ((len(args) == 1) and (args[0] == 'test1')):
        test1()
    elif ((len(args) == 1) and (args[0] == 'test2')):
        test2()
    elif ((len(args) == 1) and (args[0] == 'test3')):
        test3()
    elif ((len(args) == 1) and (args[0] == 'test4')):
        test4()