Dad wants to add an aluminum alloy frame to the photo frame with a length of 25 cm and a width of 10 cm. What is the minimum length of aluminum alloy needed?
爸爸要给长25厘米、宽10厘米的相架加做一个铝合金边框，至少需要多长的铝合金？
<gadget id="calculator">25 + 10</gadget>
<output>35</output>

<gadget id="calculator">35 * 2</gadget>
<output>70</output>

<result>70</result>