url = 'http://www.hugeurl.com/?MjkwYTE5NzEzYTBjYWMzZThhYjkzNjZmYjJkODg2NjUmMTEmVm0wd2QyUXlWa2hWV0doVVYwZG9jRlZ0TVZOWFZsbDNXa1JTVjFac2JETlhhMk0xVjBaS2MySkVUbGhoTVhCUVZteFZlRll5VGtsalJtaG9UV3N3ZUZadGNFdFRNVTVJVm10a1dHSkdjSEJXTUZwSFRURmFjVkZ0UmxSTmF6RTFWVEowVjFaWFNrbFJiR2hYWWxob00xWldXbUZrUlRGWlkwZDRVMkpIZHpGV2EyUXdZVEZrU0ZOclpHcFRSVXBZVkZWa1UyUnNjRmRYYlVacVlrWmFlVmRyV25kV01ERkZVbFJDVjAxdVVuWlZha1pYWkVaT2NtSkdTbWxXUjNoWFZtMHdlR0l4U2tkaVNFWlRZbGhTV1ZWcVJrdFRWbFowWlVoa1YwMUVSa1pXYkdoclZqSkZlVlZZWkZkaGExcFhXbFphVDJOdFJraGhSazVzWWxob1dGWnRNSGhPUm14V1RVaG9XR0pIVWxsWmJHaFRWMFpTVjFkdFJteFdia0pIVmpJeE1GWlhTa2RqUkVaV1ZqTm9lbFpxU2tkamJVVjZZVVprYUdFeGNHOVdha0poVkRKT2MyTkZaR2hTTW5oVVdWUk9RMkl4V1hoYVJFSmFWbXh3TUZaV2FHOVdiVXBIWTBac1dtSkhhRlJXTUZwaFpFZFNTRkpyTlZOaVJtOTNWa1phYjJFeVJrZFhiazVxVTBoQ1lWUlZXbmROTVZweFVtMUdUMkpGY0ZwWGExcDNZVWRGZWxGcmJGZFdNMEpJVmtSR2ExWXlUa1phUjJoVFRXNW9WVlpHWTNoaU1XUkhWMjVTVGxaRlNsaFVWM2hIVGtaYWMyRkhPV2hpUlhCNldUQmFjMWR0U2toaFJsSlhUVVp3VkZacVJuZFNWbEp5VGxkc1UySkhPVE5XTW5oWFZqQXhTRkpyWkZoaWF6VnhWVzAxUTFZeFduRlViRTVyWWtad2VGVnRkREJoYXpGeVRsVndWMDF1YUdoWmEyUkdaVWRPU1dKR1pGZFNWWEJ2Vm10U1MxUnRWa2RhU0ZaVllsVmFWRlJYTlc5WFZscDBUVVJHVWsxWFVucFdNV2h2VjBkS1dWVnVUbHBYU0VKSVZqRmFZVmRGTlZaUFYyaHBVbGhCZDFkV1ZtOVVNVnAwVW01S1QxWnNTbUZVVmxwM1ZrWlpkMXBHVGxSU2EzQjZWa2R6TVZkR1NsWmpSV3hYWWxSRk1GWlVSbHBsUm1SWldrVTFWMkpYYUZoWFZsSkxUa1prVjJKR2FHcGxhMXB4V1d0YWMwMHhXWGxOVldSb1lYcEdXVlpYTlhkV01WbDZZVWRvVjJGcldreFdNVnBIWTIxS1IxcEhiRmhTVlhCS1ZtcEdZV0V4VW5SV2EyUmhVMFphVlZsWWNITlhSbXhaWTBaa1YxWnNjRWhXVjNSTFlUQXhSVkpzVGxaU2JFWXpWVVpGT1ZCUlBUMD0='

import base64
import urllib

data = base64.decodestring(url.split('?', 1)[1]).split('&')
print urllib.unquote(reduce(lambda x, y: base64.decodestring(x), range(int(data[1])), data[2]))