Xiaogang watches CCTV's "News Network" program every night at 19:00. What is the angle between the hour hand and the minute hand on the clock face?
小刚每晚19：00都要看央视的"新闻联播"节目，这时钟面上时针与分针夹角的度数为多少．
<gadget id="calculator">12 - 7</gadget>
<output>5</output>

<gadget id="calculator">5 * 30</gadget>
<output>150</output>

<result>150</result>