Xiao Ming ran 4 laps along the rectangular playground with a length of 100 meters and a width of 76 meters. How much did he run in total?
小明沿长100m，宽76米的长方形操场跑了4圈，他一共跑了多少．
<gadget id="calculator">100 + 76</gadget>
<output>176</output>

<gadget id="calculator">176 * 2</gadget>
<output>352</output>

<gadget id="calculator">352 * 4</gadget>
<output>1_408</output>

<result>1_408</result>