A submarine is 100 meters below the water surface, and there is a shark 65 meters above the submarine. Record the position of the shark in meters.
一艘潜水艇在水面以下100米处，潜水艇的上方65米处有一只鲨鱼，鲨鱼的位置记作多少米．
<gadget id="calculator">100 - 65</gadget>
<output>35</output>

<result>35</result>