Since June 2012, Chongqing has implemented tiered electricity prices. The specific standards are: the first monthly electricity consumption is within 200 kWh (inclusive), 0.52 yuan/kWh; the second monthly electricity consumption is within 201-320 kWh (inclusive), 0.57 yuan/kWh; the third-grade monthly electricity consumption is more than 320 kWh, 0.82 yuan/kWh. If a family uses 350 degrees of electricity per month, please calculate how much electricity bills you need to pay?
从2012年6月起重庆实行阶梯电价，具体标准为：第一档月用电量200度(含)以内，0.52元/度；第二档月用电量201～320度(含)以内，0.57元/度；第三档月用电量320度以上，0.82元/度．如果一个家庭月用电350度，请你算一算需交电费多少钱？
<gadget id="calculator">0.52 * 200</gadget>
<output>104</output>

<gadget id="calculator">320 - 200</gadget>
<output>120</output>

<gadget id="calculator">0.57 * 120</gadget>
<output>68.4</output>

<gadget id="calculator">350 - 320</gadget>
<output>30</output>

<gadget id="calculator">0.82 * 30</gadget>
<output>24.6</output>

<gadget id="calculator">104 + 68.4 + 24.6</gadget>
<output>197</output>

<result>197</result>