Honghong's father went abroad for inspection from 15:00 on March 9th and returned at 15:00 on July 11th. How many days did her father go out?
红红的爸爸出国考察从3月9日15时出发，于7月11日15时回来，她的爸爸外出多少天？
<gadget id="calculator">31 - 9</gadget>
<output>22</output>

<gadget id="calculator">22 + 1</gadget>
<output>23</output>

<gadget id="calculator">23 + 30 + 31 + 30 + 11</gadget>
<output>125</output>

<result>125</result>