A car drives from place A to place B at 45 kilometers per hour. After driving for 4 hours, it is still 1 kilometer away from the midpoint of places A and B. How many kilometers are there between A and B?
汽车从甲地开往乙地，每小时行45千米，行了4小时，离甲、乙两地的中点还差1千米．甲、乙两地相距多少千米？
<gadget id="calculator">45 * 4</gadget>
<output>180</output>

<gadget id="calculator">180 + 1</gadget>
<output>181</output>

<gadget id="calculator">181 * 2</gadget>
<output>362</output>

<result>362</result>