Glue two strips of equal length together to form a longer strip. The length of this longer piece of paper is 30 cm, and the overlapping part in the middle is 6 cm. What is the length of each of the original two pieces of paper?
把两段一样长的纸条粘合在一起，形成一段更长的纸条．这段更长的纸条长30厘米，中间重叠部分是6厘米，原来两段纸条各长多少厘米．
<gadget id="calculator">30 + 6</gadget>
<output>36</output>

<gadget id="calculator">36 / 2</gadget>
<output>18</output>

<result>18</result>