XML : C# How can we write an independent end tag in xml

  <Contrast name=" left minus right">1 -1</Contrast name=" left minus right">    

This is the result of this code in c#

          writer.WriteStartElement("Contrast name=\" left minus right\"");          writer.WriteString("1 -1");          writer.WriteEndElement();    

But I want it in this way..........

          <Contrast name=" left minus right">1 -1</Contrast>