There is a rectangular grass field 100 meters long and 90 meters wide in the park. Kobayashi ran 3 laps around the grass, how many meters did Kobayashi run in total?
公园里有一块长100米，宽90米的长方形草地．小林沿草地四周跑了3圈，小林一共跑了多少米？
<gadget id="calculator">100 + 90</gadget>
<output>190</output>

<gadget id="calculator">190 * 2 * 3</gadget>
<output>1_140</output>

<result>1_140</result>