Larry mused:

I'm wondering if it's just a cardinal/ordinal thing, and we can just
translate $7 to $<7th>.  Then we don't have to guess where to insert
a .flat or :flat.

That's a very interesting generalization. There are plenty of *other* cases where one wants an ordinal, or some other kind of $n-1 value. If C<th> (and C<st>, C<nd>, C<rd>) was a "subtract one" operator, you could write:

        my $n = prompt "How many elems? ";

        print @array[1st..($n)th];

instead of the out-by-one-prone:

        print @array[0..$n-1]



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