The charging standard of the parking lot is 5 yuan within 1 hour (including 1 hour), and 3 yuan per hour for more than 1 hour (less than 1 hour is counted as 1 hour). Mom charges 14 yuan for parking. How long has she parked?
停车场的收费标准是1小时以内(含1小时内)收费5元，超过1小时(不足1小时按1小时计算)，每小时收费3元．妈妈停车收费14元，她停车了多少时间？
<gadget id="calculator">14 - 5</gadget>
<output>9</output>

<gadget id="calculator">9 / 3</gadget>
<output>3</output>

<gadget id="calculator">1 + 3</gadget>
<output>4</output>

<result>4</result>