There are two small rods, 3 cm long and 4 cm long. If you want to encircle a triangle, what is the shortest centimeter of the third stick? (Take an integer).
有两根小棒，分别长3厘米、4厘米．要想围城一个三角形，第三根小棒最短要多少厘米．(取整数)．
<gadget id="calculator">4 - 3</gadget>
<output>1</output>

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

<result>2</result>