ti</span>
<span class="kt">integer</span><span class="w">            </span><span class="kd">::</span><span class="w"> </span><span class="n">i</span><span class="p">,</span><span class="w"> </span><span class="n">j</span><span class="p">,</span><span class="w"> </span><span class="n">k</span><span class="p">,</span><span class="w"> </span><span class="n">l</span>

<span class="w">   </span><span class="n">tol</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0.0