What is the formula that expresses the same result as 1+3+5+7+9+5+3+1
与1+3+5+7+9+5+3+1表示相同结果的算式是多少
<gadget id="calculator">1 + 3 + 5 + 7 + 9 + 5 + 3 + 1</gadget>
<output>34</output>

<result>34</result>