python
from selenium import webdriver
driver = webdriver.Chrome()
driver.get("http://www.example.com")
element = driver.find_element_by_id("input_box")
element.send_keys("Hello Selenium")
button = driver.find_element_by_id("submit_button")
button.click()
page_source = driver.page_source
print(page_source)
driver.quit()
