A piece of wood was sawed section by section, and sawed twice, with an average section of 136 cm. How long is this piece of wood?
一根木料一段一段的锯，锯了2次，平均每段136厘米，原来这根木料有多长？
<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">136 * 3</gadget>
<output>408</output>

<result>408</result>