a = <span class="hljs-string">&quot;&quot;&quot;
test
&quot;&quot;&quot;</span>
b = <span class="hljs-string">&#x27;&#x27;&#x27;
test
&#x27;&#x27;&#x27;</span>
c = <span class="hljs-string">&quot;test&quot;</span>
d = <span class="hljs-string">&#x27;test&#x27;</span>