import requests
from bs4 import BeautifulSoup

def check_li_tags(url):
    try:
        # Fetch the page
        response = requests.get(url)
        response.raise_for_status()  # Raise an error for bad responses (4xx, 5xx)

        # Parse the HTML
        soup = BeautifulSoup(response.text, "lxml")

        # Find all <li> elements
        li_elements = soup.find_all("li")

        # Check if each <li> contains an <a> tag
        for index, li in enumerate(li_elements):
            if not li.find("a"):
                print(f"Missing <a> tag in <li> at index {index}: {li}")

    except requests.exceptions.RequestException as e:
        print(f"Error fetching the URL: {e}")

# Prompt the user for a URL
url = input("Enter the URL to check: ").strip()
check_li_tags(url)