It is known that one side of a triangle is 8 cm and 5 cm, so what is the shortest centimeter of the third stick. (fill in centimeters)
已知围成的一个三角形的一条边是8厘米和5厘米，那么第三根小棒最短是多少厘米．(填整厘米)
<gadget id="calculator">8 - 5</gadget>
<output>3</output>

<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<result>4</result>