Help for this page

Select Code to Download

Select or download this

use strict;
use warnings;
...
        || $a->[2] <=> $b->[2]
        || $a->[0] <=> $b->[0];
}

Select or download this
```
4,1,2,3
1,2,3,4
2,3,4,1
3,4,4,2
```