#!/usr/bin/python2
import sys
import urllib2
import re

headers = {'User-Agent' : 'Mozilla/5.0' }

def getLinks(addr):
    req=urllib2.Request(addr, None, headers)
    contents=""
    try:
        c=urllib2.urlopen(req)
        contents=c.read()
    except urllib2.HTTPError as e:
        return None

    p = re.compile('/wiki/[\w()]+"')
    return set(p.findall(contents))

#for s in getLinks('http://en.wikipedia.org/wiki/Dexter_(TV_series)') :
for s in getLinks(sys.argv[1]) :
    print "http://en.wikipedia.org" + s[:-1]
    links = getLinks("http://en.wikipedia.org" + s[:-1])
    if links != None :
        for s2 in links :
            print s2