A rope, if you cut 5 sections, there will be a difference of 2 meters; if you cut 3 sections, there will be 8 meters left. How long is the rope in meters?
一根绳子，如果剪5段，则差2米；如果剪3段，则余下8米．绳子长多少米．
<gadget id="calculator">8 + 2</gadget>
<output>10</output>

<gadget id="calculator">5 - 3</gadget>
<output>2</output>

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<gadget id="calculator">25 - 2</gadget>
<output>23</output>

<result>23</result>