import re, operator
from bs4 import BeautifulSoup

h = BeautifulSoup(open('diskuze.html').read())
divs = h.find_all("div", "ds_hlavicka")
names = {}

for div in divs:
    div = str(div)
    m = re.search('(\d\d):\d\d(.*?)<b', div, re.DOTALL)
    n = m.group(2).strip()
    if n[0] == '<':
        n = re.search('>(.*?)<', n).group(1)
    names[n] = names.get(n, 0)
    names[n] += 1


names = sorted(names.items(), key=operator.itemgetter(1))
names.reverse()

for n in names:
    print(n[0] + ": " + str(n[1]))