Tue, 26 May 2020 12:09:36 +0200 wenzelm proper check of example;
Tue, 26 May 2020 11:58:42 +0200 wenzelm clarified signature --- fit within limit of 22 arguments;
Tue, 26 May 2020 11:25:33 +0200 wenzelm tuned;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 tip