A and B start from A and B at the same time and walk towards each other. A's speed is 60 meters per minute, and B's speed is 100 meters per minute. Soon after, the two meet at C on the way, but both Without stopping, they walked to B and A respectively and then turned around and walked back. As a result, they met for the second time at a distance of 1 kilometer from C. So how many kilometers are there between AB and AB?
甲、乙两人分别从A、B两地同时出发相向而行，甲的速度是每分钟60米，乙的速度是每分钟100米，不久以后两人在途中C地相遇，但是两人都没有停步，分别走到B地和A地后又扭头往回走，结果在距离C地1千米处两人第二次相遇，那么AB两地相距多少千米？
<gadget id="calculator">3 + 5</gadget>
<output>8</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">3 * (3/8)</gadget>
<output>9/8 = around 1.125</output>

<gadget id="calculator">(9/8) - 1</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(5/8) - (1/8)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / (1/2)</gadget>
<output>2</output>

<result>2</result>