Given an array listing rules in the Kingdom of Jerusalem like this one: @kings = ('Baldwin', 'Melisende', 'Fulk', 'Amalric', 'Guy', 'Conrad'). How can we create one that is built from the 2nd, the 4th and then the 1st element?

One solution is:

@names = ($kings[2], $kings[4], $kings[1])

The other, the simpler solution is to use array slices: