A hash has no order.

But maybe you want to output the elements of a hash in a particular order. Then you can use the following approach with a "hash slice" for example:

my @columns= qw(A R N D C Q E G H I L K M F P S T W Y V B Z X);
my %hash= ...;

print "@columns\n";
print "@hash{ @columns }\n";
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The alternative approach is to simply use a loop over @columns.

thank you! this helps me a lot :)