static Pair<S, Int> ai_findSpammyIP() {
  new MultiSet<S> badIPs;
  for ping (S s : ai_texts("$X", "was for path", "/")) {
    if (isCIPrefixPlusGlobalID(s, "HTTP request ")) {
      S ip = ai_text(s, "came from IP", "$X");
      badIPs.add(ip);
    }
  }
  ret multiSetTopPair(badIPs);
}