import urllib.request
import urllib.error
import random
import http.client

print('Beginning file download attempts...')

var = 1

while var == 1:
    try:
        number = (random.randint(22000000,24000000))
        code = (random.randint(101000,199999))
        url = 'http://www.ugrad.math.ubc.ca/coursedoc/math103/2017W2/quiz/quiz1/quiz1-%s-%s.pdf' % (number, code)
        urllib.request.urlretrieve(url, '/Users/alirod/Desktop/Python/examen/examen.pdf')
    except urllib.error.HTTPError as e:
        if e.code in (..., 403, ...):
            # print ('===HTTP Error 403===')
            print (number)
            print (code)
            continue
    except http.client.HTTPException as e:
        print ('HTTP Client Error')
        continue

print ("End of Loop")