Teacher Wang needs to use 32 decimeters of iron wire to surround the bottom of a circular tub. He first cut off half of a wire, and then cut off 2 decimeters, which just met the requirements. How many decimeters is this wire long?
王老师需要用32分米长的铁丝来围一个圆形木盆的底部．他先将一根铁丝剪去一半，再剪去2分米，正好符合要求．原来这根铁丝长多少分米？
<gadget id="calculator">32 + 2</gadget>
<output>34</output>

<gadget id="calculator">34 * 2</gadget>
<output>68</output>

<result>68</result>