There are 8 episodes in a TV series, and the TV station must broadcast them sequentially within 4 days from Monday to Thursday. How many days can they not be broadcast? How many ways are there to arrange the broadcast?
一部电视连续剧共8集，电视台要在周一到周四这4天内按顺序播完，其中可以有若干天不播，共有多少种安排播出的方法？
<gadget id="calculator">4 * 3</gadget>
<output>12</output>

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

<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<gadget id="calculator">6 * 7</gadget>
<output>42</output>

<gadget id="calculator">7 * 6</gadget>
<output>42</output>

<gadget id="calculator">42 / 2</gadget>
<output>21</output>

<gadget id="calculator">4 * 21</gadget>
<output>84</output>

<gadget id="calculator">7 * 6 * 5</gadget>
<output>210</output>

<gadget id="calculator">3 * 2 * 1</gadget>
<output>6</output>

<gadget id="calculator">210 / 6</gadget>
<output>35</output>

<gadget id="calculator">4 + 42 + 84 + 35</gadget>
<output>165</output>

<result>165</result>