It is known that the lengths of the two sides of a triangle are 3 cm and 8 cm respectively. To make the perimeter of the triangle the longest, what is the length of the third side in cm? (length in centimeters)
已知一个三角形两边的长分别是3厘米和8厘米，要使这个三角形的周长最长，那么第三边的长是多少厘米．(长度为整厘米数)
<gadget id="calculator">3 + 8</gadget>
<output>11</output>

<gadget id="calculator">11 - 1</gadget>
<output>10</output>

<result>10</result>