There is a row of electric poles. The distance between each two was originally 45 meters, but now it is changed to 50 meters. If one electric pole at the starting point does not move, at least how many meters apart there is another electric pole that does not need to be moved?
有一排电线杆，原来每两根之间的距离是45米，现在改为50米，如果起点的一根电线杆不移动，至少隔多少米又有一根电线杆不需要移动？
<gadget id="calculator">2 * 3 * 3 * 5 * 5</gadget>
<output>450</output>

<result>450</result>