Deserialize different element tags into one object class C#?

I have the this form of xml

<Element attributeX="X" attributeY="Y"> 
  <SubElement attributeX="X" attributeY="Z"/>
</Element>
<Element attributeX="X" attributeY="Y"> 
  <SubElement attributeX="X" attributeY="Z"/>
  <Element attributeX="X" attributeY="Y">
    <SubElement attributeX="X" attributeY="Z"/>
  </Element>
</Element>

but in the code I have one object class for "Element" and "SubElement" with attributes "attributeY" "attributeX" and "attributeZ", I cannot find a way to do the deserialisation of the XML ?