There is a bundle of wires, half of which is used for the first time and more than 3 meters, the remaining half is used for the second time and the remaining half is less than 2 meters, and 8 meters are used for the third time, leaving 6 meters left. How many meters is the length of this bundle of wires?
有一捆电线，第一次用去一半多3米，第二次用去余下的一半少2米，第三次用去8米，还余下6米．原来这捆电线的长有多少米．
<gadget id="calculator">6 - 2</gadget>
<output>4</output>

<gadget id="calculator">8 + 4</gadget>
<output>12</output>

<gadget id="calculator">12 * 2</gadget>
<output>24</output>

<gadget id="calculator">24 + 3</gadget>
<output>27</output>

<gadget id="calculator">27 * 2</gadget>
<output>54</output>

<result>54</result>