The tortoise and the hare run an 8,000-meter race. The speed of the hare is five times that of the tortoise. When they start together from the starting point, the hare keeps running. The tortoise goes to a certain place and starts to sleep. When the tortoise wakes up, the hare is 5,000 ahead of it. The tortoise is catching up, but when the rabbit reaches the finish line, the tortoise is 7,000 meters behind. So how many meters did the rabbit run while the tortoise was sleeping?
龟兔进行8000米赛跑，兔子的速度是乌龟的速度的5倍，当它们从起点一起出发后，兔子不停地跑，乌龟跑到某一地点开始睡觉，乌龟醒来时兔子已经领先它5000米，乌龟奋起直追，但兔子到达终点时，乌龟落后7000米，那么乌龟睡觉期间，兔子跑了多少米？
<gadget id="calculator">8_000 / 5</gadget>
<output>1_600</output>

<gadget id="calculator">8_000 - 1_600</gadget>
<output>6_400</output>

<gadget id="calculator">7_000 - 6_400</gadget>
<output>600</output>

<gadget id="calculator">600 * 5</gadget>
<output>3_000</output>

<result>3_000</result>