>,<span class="fl">2</span>,<span class="fl">2</span><span class="op">)</span></span></span>
<span class="r-in"><span>  , x <span class="op">=</span> <span class="fl">1</span><span class="op">:</span><span class="fl">4</span></span></span>
<span class="r-in"><span>  , y <span class="op">=</span> <span class="fl">4</span><span class="op">:</span><span class="fl">1</span></span></span>
<span class="r-in"><span>  , val <span class="op">=</span> <span class="va">letters</span><span class="op">[</span><span clas