# To run this, download the BeautifulSoup zip file
# http://www.py4e.com/code3/bs4.zip
# and unzip it in the same directory as this file

from urllib.request import urlopen
from bs4 import BeautifulSoup
import ssl
import re

# Ignore SSL certificate errors
ctx = ssl.create_default_context()
ctx.check_hostname = False
ctx.verify_mode = ssl.CERT_NONE

url = input('Enter - ')
html = urlopen(url, context=ctx).read()
soup = BeautifulSoup(html, "html.parser")

tags = []
nums = []
lines = soup.decode().split("\n")
for line in lines:
    res = re.search("span", line)
    if res != None:
        num = re.findall("[0-9]+", line)             
        for i in num:
            nums.append(int(i))

sum = 0
for num in nums:
    sum += num
print(sum)    


#print(soup.decode())
# Retrieve all of the anchor tags
# tags = soup('a')
# for tag in tags:
#     # Look at the parts of a tag
#     print('TAG:', tag)
#     print('URL:', tag.get('href', None))
#     print('Contents:', tag.contents[0])
#     print('Attrs:', tag.attrs)


