There are six sticks, each 50 cm long. Now they are nailed together end to end in turn, and the length of the part nailed together in the middle of every two wooden strips is 10 cm. What is the total length of the sticks in centimeters after they are nailed.
有六根木条，各长50厘米．现要将它们依次首尾相接钉在一起，每两根木条中间钉在一起的部分长10厘米．钉好后木条总长多少厘米．
<gadget id="calculator">50 * 6</gadget>
<output>300</output>

<gadget id="calculator">10 * 5</gadget>
<output>50</output>

<gadget id="calculator">300 - 50</gadget>
<output>250</output>

<result>250</result>