By how many centimeters is the perimeter of a square with side length 15 cm shorter than the perimeter of a rectangle with side length 25 cm and width 10 cm?
边长是15厘米的正方形周长比长25厘米，宽10厘米的长方形周长短多少厘米
<gadget id="calculator">25 + 10</gadget>
<output>35</output>

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

<gadget id="calculator">15 * 4</gadget>
<output>60</output>

<gadget id="calculator">70 - 60</gadget>
<output>10</output>

<result>10</result>