TV station inserts 20-second and 40-second advertisements within 3 minutes of prime time every night. The 20-second advertisement charges 7,000 yuan each time, and the 40-second advertisement charges 12,000 yuan each time. If each advertisement is required to play a lot For two times, and the TV station chooses the broadcast mode with the greatest benefit, what is the maximum profit of inserting advertisements within 3 minutes of the prime time of the day?
某电视台在每天晚上黄金时段的3分钟内插播时长为20秒和40秒的两种广告，20秒广告每次收费7000元，40秒广告每次收费12000元，若要求每种广告播放不少于2次，且电视台选择益最大的播放式式，则在这一天黄金时段3分钟内插播广告的最大收益是多少元．
<gadget id="calculator">5 * 7_000</gadget>
<output>35_000</output>

<gadget id="calculator">2 * 12_000</gadget>
<output>24_000</output>

<gadget id="calculator">35_000 + 24_000</gadget>
<output>59_000</output>

<result>59_000</result>