How write following code without regular expression

i wrote the following code for extracting the all no. from the web page & add all of them.but i want to code it without using regular expression so, please Guid me how to do it. link:http://ift.tt/2s0hyP3

my code :

import urllib
import re
from BeautifulSoup import *

html = urllib.urlopen('http://ift.tt/2s0hyP3 ').read()

soup = BeautifulSoup(html)

# Retrieve all of the anchor tags
tags = soup('td')

total = 0
for tag in tags:
# Look at the parts of a tag
      line = str(tag)
      x = re.findall('[0-9]+',line)
      if len(x) > 0:
           for item in x:
                total += int(item)

print(total)