             "0"              </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 8 "0"                        "0"              </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   2                                 3                </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 0 "0"                               "0"              </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 1 "(1/8)b+(1/4)c"                   "0"              </span>
<span class="r-ou