hello

 - first
 - second

### hello

<iframe name=srcdoc id=too></iframe>

<a href="http://abc" class="foo-$">test $</a>

<a href=a id=attack>one</a>
<a href=a name=attack>one</a>
<img src=a id=attack>
what
<img src=a name=attack>

$$\<style>{property:value}</style>{}$$

$$<tag style="property:value" acceptedAttribute="True"></tag>{}$$

$$\<script>{&lt;<a></a>&gt;}$$

<image onerror=alert(1) src=a>

<img name=attack src=a>
<img id=attack src=a>

<a id="attack" href="attack"></a>
<customtag id="attack"></customtag>
<article id="attack"></article>
<iframe name="attack"></iframe>
<base id="attack"></base>
<aside id="attack"></aside>
<audio id="attack"></audio>
<b id="attack"></b>
<s id="attack"></s>


<textarea name="attack" /> </textarea>
<textarea id="attack" /> </textarea>

<a id="attack"></a><a id="attack" name="attack" href="attack"></a>
<form id="attack"><input id="attack"/> </form>

<form id="attack"><button id="attack"/> </button> </form>

<form id="attack"><img id="attack" src="https://mail.proton.me" /> </form>

<form id="attack"> <form id="attack" name="attack"> <input name="attack" value="d"> </form>

<iframe name=window srcdoc=" <iframe name=attack srcdoc=&quot; <iframe name=attack srcdoc=&amp;quot; <a id='attack' href='d'></a> &amp;quot;></iframe> &quot;></iframe> "></iframe>

<form name="attack"><textarea name="attack" /> </textarea> </form>

<form name="attack"><textarea id="attack" /> </textarea> </form>

<iframe name=window srcdoc=" <iframe name=attack srcdoc=&quot; <iframe name=attack srcdoc=&amp;quot; <iframe name=attack srcdoc=&amp;amp;quot; <iframe name=attack srcdoc=&amp;amp;amp;quot; <a id='attack' href='attack'></a> &amp;amp;amp;quot;></iframe> &amp;amp;quot;></iframe> &amp;quot;></iframe> &quot;></iframe> "></iframe>

<script>alert(1)</script>


Collaborative Calculation and Data Science

colby

sagemath

hello

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