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  sub add_two ($$); # add_two will be defined later

    $account_balance   = @credits + @debits;
    $biblical_metaphor = @sheep - @goats;

    @account_balances   = @credits + @debits;
    @biblical_metaphors = @sheep - @goats;

$length2 = scalar(@intArray); # type coercion, reports size of the arr
+ay
$hashTable{"third"} = @intArray; # coercion to a scalar type means the
+ value is not the array but its length