Xiaoli writes 23 brush characters every day, and persists like this for a week, how many brush characters can she write in total.
小丽每天写23个毛笔字，像这样坚持一个星期，一共能写多少个毛笔字．
<gadget id="calculator">23 * 7</gadget>
<output>161</output>

<result>161</result>