gskoli:

Just a minor suggestion on your array initialization: It looks like your data may come from a table that you manually split into three vectors. In the future, you may want to try putting the table into your code like so:

my (@new_lot, @cat_one, @A_services);
my @table = qw (
    1    R    182
    2    R    111
    3    RC   160
    4    RC   105
    5    R    113
    6    RC   121
);
[download]

Then you can split it out into separate tables (if you like) like this:

while (@table) {
    push @new_lot,    shift @table;
    push @cat_one,    shift @table;
    push @A_services, shift @table;
}
[download]

It adds a little processing time, but makes maintenance quite a bit easier. Alternatively, you can avoid the extra processing and just go ahead and make it an AoA, like this:

my @table = (
   [ qw( 1    R    182 ) ],
   [ qw( 2    R    111 ) ],
   [ qw( 3    RC   160 ) ],
   [ qw( 4    RC   105 ) ],
   [ qw( 5    R    113 ) ],
   [ qw( 6    RC   121 ) ],
);
[download]

But you'll have to change your coding a little, though, as $cat_one[2] would become $$table[2][1].

...roboticus

UPDATE: Per chromatic's fine suggestion, I changed the lines like $new_lot[@new_lot] = shift @table; to push @new_lot, it makes the code look much nicer.