Master Zhang sawed a piece of wood three times, and each section was exactly 150 centimeters long. How many centimeters is this piece of wood?
张师傅锯一根木料，锯了3次，每段刚好长150厘米．这根木料长多少厘米？
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">150 * 4</gadget>
<output>600</output>

<result>600</result>