You need a number greater than 9_999_999 to get more than one element back: 
for my $input (9_999_990 .. 10_000_010) {
    my @unpacked = unpack 'VV', $input;
    say scalar @unpacked, " $input";
}

[download]
($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,

[download]

In reply to Re^3: Understanding Unpack on Decimal Value by choroba
in thread Understanding Unpack on Decimal Value by arblargan

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