A small stick was sawed into 4 sections, and it took 2 minutes each time. How many minutes did it take in total?
一根小棒，锯4段，每次用了2分钟，一共用了多少分钟．
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<result>6</result>