1
<foo>
2
<bar a="1"/>
3
<bar a="1" b="2"/>
4
<bar a="1" b="2" c="3"/>
5
<bar a="1" b="2" c="3" d="4"/>
6
<bar a="1" b="2" c="3" d="4" e="5"/>
7
<bar a="1" b="2" c="3" d="4" e="5" f="6"/>
8
9
10
</foo>