Hello all, I have a school assignment but I seem to be unable to begin... What I was given is something like the following

my @out= (b,a,c,d,a,b,f,g,a,c,g);
my @out1=(1,2,3,1,2,3,4,5,2,3,2);#the numbers declares how many times 
+the letters from the @out are found
[download]

I want to make a hash contains as keys the unique elements from the @out and as values the sums of the letters from the @out1. Also I want the hash to be sorted
This is the preview of the hash %hash=(a=>6,b=>4,c=>6,d=>1,f=>4,g=>7)
any ideas please?