Fri, 12 Aug 2016 17:53:55 +0200 wenzelm more symbols;
Fri, 12 Aug 2016 17:49:02 +0200 wenzelm clarified syntax;
Fri, 12 Aug 2016 16:54:46 +0200 wenzelm updated;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 tip