Coat Check Claim Ticket

Most programs start the same way: take a few pieces of information, and show them back to the user in a readable form. In C#, you store a piece of information in a variable with a type (like int or string) and a name, and you show it with Console.WriteLine. The easiest way to mix a variable's value into a sentence is string interpolation: put a $ right before the opening quote of a string, and anything inside {curly braces} gets replaced with that expression's value.

Worked example

Here's a locker room key tag printed the same way:

int lockerNumber = 47;
string combo = "12-34-56";
bool isTopLocker = false;

Console.WriteLine("Locker Key Tag");
Console.WriteLine($"Locker: {lockerNumber}");
Console.WriteLine($"Combo: {combo}");
Console.WriteLine($"Top locker: {isTopLocker}");

Locker Key Tag
Locker: 47
Combo: 12-34-56
Top locker: False

Notice every line that needs to show a variable's value uses $"...", while the plain title line doesn't need it at all. Also notice a bool like isTopLocker prints as True or False (capitalized) when interpolated — that's just how C# formats booleans by default.

Your turn

The starter code prints a coat-check ticket: a claim number, an item description, and a rack number. One of the Console.WriteLine calls is missing the $ that turns a plain string into an interpolated one, so instead of showing the claim number, it prints the literal text {claimNumber} — curly braces and all. Find that line and add the missing $ so the real value shows up instead.

If something goes wrong

If you still see literal curly braces like {claimNumber} in the output after your fix, double check the $ is placed immediately before the opening " of that specific string — not somewhere else in the line. If you instead get a compiler error mentioning that a name doesn't exist, check that you spelled the variable name inside the braces exactly the way it was declared, since C# is case-sensitive and claimNumber and ClaimNumber are different names.