-</span> <span class="mi">1</span><span class="p">):</span>
                    <span class="c1"># (2.1)</span>
                    <span class="n">solver</span><span class="o">.</span><span class="n">Add</span><span class="p">(</span>
                        <span class="p">(</span><span class="n">X</span><span class="p">[</span><span class="n">k</span> <span class="o">*</span> <span class="n">T</span> <span class="o">+</span> <span class="n">t</span> <span class="o">+</span> <span class="mi">1</span><span