Just for fun with Schwartzian transform and expensive sort!
DB<109> $txt='id003;30;80;10'
DB<110> local $.=0; @sort = sort {$a->[0] <=> $b->[0]} map { [$_ =>
+$.++] } split /;/, $txt
DB<111> print $sort[-1]->[1]
2
Was to lazy to eliminate the id field first. :)
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