Challenge 1: A Positional Product Record — Possible Solution
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Program.cs:

public record Product(string Name, decimal Price);

var p = new Product("Widget", 9.99m);
Console.WriteLine(p);

var (name, price) = p;
Console.WriteLine($"Name: {name}, Price: {price}");

Output:

    Product { Name = Widget, Price = 9.99 }
    Name: Widget, Price: 9.99

Explanation:
The single-line record declaration generates everything needed: a
constructor taking Name and Price, get;init; properties for both,
a ToString() override producing the "Product { Name = ..., Price =
... }" format shown, and a Deconstruct method enabling
`var (name, price) = p;` to unpack both values into separate local
variables with no extra code written anywhere.

WHY THIS WORKS AS AN ANSWER
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This uses the chapter's own positional record syntax exactly,
demonstrating both the free ToString() formatting and the free
deconstruction support in one short example.