There are two kinds of scales on a long wooden stick. The first scale line divides the stick into 10 equal parts, and the second type divides the stick into 12 equal parts. If the stick is sawn off along each scale line, the stick How many pieces were sawed into?
在一根长木棍上有两种刻度，第一种刻度线将木棍分成10等分，第二种将木棍分成12等分，如果沿每条刻度线将木棍锯断，木棍共被锯成多少段．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">60 / 30</gadget>
<output>2</output>

<gadget id="calculator">2 - 1</gadget>
<output>1</output>

<gadget id="calculator">12 - 1 - 1</gadget>
<output>10</output>

<gadget id="calculator">9 + 10 + 1</gadget>
<output>20</output>

<result>20</result>