In order to encourage water conservation, a water company in a certain city adopts the method of monthly segment billing to collect water fees. 3.2 yuan per ton within 15 tons, and 4.5 yuan per ton for the part exceeding 15 tons. The water consumption of Yangyang's family last month was 19 tons. How much water fee should I pay?
某市自来水公司为鼓励节约用水，采取每月分段计费的方法收取水费．15吨以内的每吨3.2元，超过15吨的部分，每吨4.5元．洋洋家上个月的用水量为19吨，应缴水费多少元？
<gadget id="calculator">15 * 3.2</gadget>
<output>48</output>

<gadget id="calculator">19 - 15</gadget>
<output>4</output>

<gadget id="calculator">4 * 4.5</gadget>
<output>18</output>

<gadget id="calculator">48 + 18</gadget>
<output>66</output>

<result>66</result>