How many degrees did the minute hand rotate during the period from 3:15 to 3:28?
从3点15分到3点28分这段时间里，分针旋转了多少度．
<gadget id="calculator">360 / 60</gadget>
<output>6</output>

<gadget id="calculator">28 - 15</gadget>
<output>13</output>

<gadget id="calculator">6 * 13</gadget>
<output>78</output>

<result>78</result>