There are three points A, O, and B on a road. O is between A and B. The distance between A and O is 1620 meters. A and B start from A and O to point B at the same time. In the 36th minute, A and B are at the same distance from point O; in the 36th minute, A and B meet at point B. What is the distance between points O and B in meters?
一条路上有A、O、B三个地点，O在A与B之间，A与O相距1620，米，甲、乙两人同时分别从A和O点出发向B点行进，出发后第12分钟，甲、乙两人离O点的距离相等；第36分钟甲与乙两人在B点相遇．那么O与B两点的距离是多少米．
<gadget id="calculator">3 * 1_620</gadget>
<output>4_860</output>

<gadget id="calculator">1_620 + 4_860</gadget>
<output>6_480</output>

<gadget id="calculator">3 + 3</gadget>
<output>6</output>

<gadget id="calculator">6_480 / 6</gadget>
<output>1_080</output>

<gadget id="calculator">1_620 - 1_080</gadget>
<output>540</output>

<gadget id="calculator">3 * 540</gadget>
<output>1_620</output>

<result>1_620</result>