On the side of a 56-meter-long corridor, there are a total of 8 trash cans from the beginning to the end, and the distance between each two trash cans is how many meters.
在一条长56米的走廊一旁，从头到尾一共放了8个垃圾桶，每两个垃圾桶之间相距多少米．
<gadget id="calculator">8 - 1</gadget>
<output>7</output>

<gadget id="calculator">56 / 7</gadget>
<output>8</output>

<result>8</result>