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public class LambdaTest
{
static void Main()
{
var counter = 0;
WriteStream(() => counter++);
Console.WriteLine("Final value of counter: {0}", counter);
}
static void WriteStream(Func<int> counter)
{
for (var i = 0; i < 10; ++i)
{
Console.WriteLine("{0}, ", counter());
}
}
}
}