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use strict;
use warnings;
...
    my $decval = hex($value);
    printf "Hex value 0x%08lx = %ld (decimal)\n", $decval, $decval;
}

Hex value 0x0005f9ad = 391597 (decimal)
Hex value 0x00f4ec9e = 16051358 (decimal)
Hex value 0x00000005 = 5 (decimal)