Select Code to Download

use feature ":5.14";
use warnings FATAL => qw(all);
...
 }

pp(\%c)

{
  key1 => [["1.1.1", "1.1.2", "1.1.3"], ["2.1.1", "2.1.2", "2.1.3"]],
  key2 => [["1.2.1", "1.2.2", "1.2.3"], ["2.2.1", "2.2.2", "2.2.3"]],
}