an class="p">][</span><span class="s1">&#39;1801&#39;</span><span class="p">:</span><span class="s1">&#39;1900&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">da</span><span class="p">[:,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">]</span>
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