var ns=T(-6,-3,-2,-1,0,1,3,4,5,7,8,9,10,11,14,15,17,18,19,20);
range(ns).println();

ns=T(
    0,  1,  2,  4,  6,  7,  8, 11, 12, 14,
   15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
   25, 27, 28, 29, 30, 31, 32, 33, 35, 36,
   37, 38, 39);
range(ns).println();

range([1..100]).println();