The total length from one end of the playground to the other end is 96 meters. Originally, a red flag was inserted every 4 meters and both ends were inserted. Later, according to the needs, it was adjusted to a red flag every 6 meters. How many red flags do not need to be moved?
从运动场一端到另一端全长96米，原来每隔4米插一面红旗且两端都插，后来根据需要调整为每隔6米插一面红旗，那么一共有多少面红旗不需要移动？
<gadget id="calculator">2 * 2 * 3</gadget>
<output>12</output>

<gadget id="calculator">96 / 12</gadget>
<output>8</output>

<gadget id="calculator">8 + 1</gadget>
<output>9</output>

<result>9</result>