I am searching on GeneBank data, I got 480 Accession number, for each Accession number, I need two items: item1 and items, so I have the print format like:

Accession      item1       item2
12345678       abcd1234    als
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because I generate each accession number first, for each accession number, I use foreach loop to generate item1 and item2, maybe some of the accession number have a couple of groups item1 and item2, maybe some of them have none item1 and item2 at all. I tried to use:

printf ("%08d",$accession);#which is before foreach loop.
foreach (@accession){
....
$item1=....;
$item2=....;
printf("%16s%08s",$item1,$item2);
}
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It printed out so messy. Please help! Thanks!