#my $_10_15 = upto_list( 10, 15 );
my $_5_30 = upto_list( 5, 30 );

show( $_5_30, 20 );

##</code><code>##

C:\test>1078236.pl
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

##</code><code>##

C:\test>1078236.pl
5
6
7
8
9
10
11
12
13
14
15