A piece of wood is 20 decimeters long. Now it needs to be sawed into 5 sections. Each sawing takes 5 minutes, and each sawing requires a rest of 2 minutes. How many minutes will it take to finish sawing this piece of wood?
一根木料长20分米，现要锯成5段，每锯一次要5分钟，每锯一次要休息2分钟，锯完这根木料共要多少分钟？
<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<gadget id="calculator">5 - 1 - 1</gadget>
<output>3</output>

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

<gadget id="calculator">20 + 6</gadget>
<output>26</output>

<result>26</result>