Sun, 25 Feb 2018 12:59:08 +0100 wenzelm notation for dummy sort;
Sat, 24 Feb 2018 17:21:35 +0100 wenzelm more symbols;
Fri, 23 Feb 2018 21:46:30 +0100 wenzelm merged
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 tip