There is an electronic clock on the clock tower of the railway station. On the border of the circular clock face, there is a small colored light at the minute mark. At 9:37:20 in the evening, how many small colored lights are there in the acute angle between the minute hand and the hour hand.
在火车站的钟楼上装有一个电子报时钟，在圆形钟面的边界，每分钟的刻度处都有一个小彩灯．晚上9时37分20秒时，在分针与时针所夹的锐角内有多少个小彩灯．
<result>12</result>