anchor.diff:      repeat_while(fun({35,_}) -> false;
                       ({K,Map}) ->
                            Map = maps_from_list_nif(maps:to_list(Map)),
  -                         Map = maps:filter(fun(K,V) -> V =:= K*100 end, Map),
  +                         Map = maps:filter(fun(K2,V) -> V =:= K2*100 end, Map),
                            {K+1, maps:put(K,K*100,Map)}
                    end,
                    {1,#{}}),
  
positive.code: forwarder(To, N) ->
      case receive_any() of
  	terminate ->
  	    To ! {self(), N};
  	Msg ->	    
  	    To ! Msg,	   
  	    forwarder(To, N+1)
  
negative.code:     send2_do2(SendBlobF, self()),
  
      Papa = self(),
      {Forwarder,_} = spawn_monitor(fun() -> forwarder(Papa) end),
      io:format("sending to forwarder pid=~p\n",[Forwarder]),
      send2_do2(SendBlobF, Forwarder),
      Forwarder ! terminate,
      {'DOWN', _, process, Forwarder, 4} = receive_any(),
      ok.
  
  send2_do2(SendBlobF, To) ->   
  