It looks like you need an array: 
my @var;
for my $a (1..10) {
 $var[$a] = 5 + $a;
}

[download]
Arrays are sorted and consume less memory than hashes, but allow only integer indexes (instead of arbitrary strings as hash indexes).
Sorry if my advice was wrong.

In reply to Re: Concatenation on Varibale Name by aitap
in thread Concatenation on Varibale Name by dushyant

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