and place N points.
If one of X or Y is a pair (LOW . HIGH), take it to be equivalent
-t specfiying a vector [LOW ... HIGH]. For example, (3 . 8) is
+to specfiying a vector [LOW ... HIGH]. For example, (3 . 8) is
equivalent to [3 4 5 6 7 8]. If one component is a pair, the
other must be an integer -- the case where both X and Y are pairs
is not supported.