“Boxing” (Problem)

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“Boxing” (Problem)

What will the following code display?
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struct Foo
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{   
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  int value;
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  public override string ToString()
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  { 
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    if (value == 2)
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      return "Baz";
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    return (value++ == 0) ? "Foo" : "Bar";
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  }
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}
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void Main()
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{ 
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  var foo = new Foo();
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  Console.WriteLine(foo);
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  Console.WriteLine(foo);
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  object bar = foo;
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  object qux = foo;
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  object baz = bar;
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  Console.WriteLine(baz);
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  Console.WriteLine(bar);
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  Console.WriteLine(baz);
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  Console.WriteLine(qux);
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}
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