If a ribbon is 35 cm long, how many centimeters are left after enclosing a square with a side length of 8 cm?
一根丝带长35厘米，围一个边长为8厘米的方框后，还剩多少厘米？
<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<gadget id="calculator">35 - 32</gadget>
<output>3</output>

<result>3</result>