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# “ExplicitlyInternment” (Problem)

What will the following code display?

```csharp
var x = "AB";
var y = new StringBuilder().Append('A').Append('B').ToString();
var z = string.Intern(y);
Console.WriteLine(x == y);
Console.WriteLine(x == z);
Console.WriteLine((object)x == (object)y);
Console.WriteLine((object)x == (object)z);
```

[Solution](/problembookdotnet/en/strings/explicitlyinternment-s.md)