The two sides of a triangle are 17 cm and 26 cm respectively, what is the longest cm of the third side? (rounded centimeters)
一个三角形的两条边分别是17厘米和26厘米，第三条边最长是多少厘米？(取整厘米)
<gadget id="calculator">26 + 17</gadget>
<output>43</output>

<gadget id="calculator">43 - 1</gadget>
<output>42</output>

<result>42</result>