or first</span>
<span class="sd">            three digits</span>

<span class="sd">    Returns:</span>
<span class="sd">        (tuple of arrays): the expected probabilities array and the digits</span>
<span class="sd">            combination array. </span>
<span class="sd">    &quot;&quot;&quot;</span>
    <span class="n">dig_array</span> <span class="o">=</span> <span class="n">arange</span><span class="p">(</span><span class="mi">10</span> <span class="o">**</span> <span class="p">(</span><span class="n"