Been studying hashes and lists but still need help making first loop

Want to this to $data1,$bob,$dog etc.. creates byte count of the string data 

$data1_enc=encode('UTF-8',$data1);
$data1_count=length $data1_enc;

$bob_enc=encode('UTF-8',$bob);
$bob_count=length $data2_enc;

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Create a routine that adds preceding characters

making $some_count name variable a fixed length (8 character example) 150 add 5 x's , 1000 add 4 x's

$data1_count=150
$bob_count=1000

$data1_count_fixed=    xxxxx150
$bob_count_fixed=      xxxx1000

[download]

In reply to Loop or sub routine by redmustang

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