say (range 0);
say (range (0 - 1));
say (range 10);
say (range 1 10);
say (range 1 10 2);

say (up 0);
say (up (0 - 1));
say (up 10);
say (up 1 10);
say (up 1 10 2);

say (down 0);
say (down (0 - 1));
say (down 10);
say (down 1 10);
say (down 1 10 2);