Uncle Zhang's vegetable field is 25 meters long and 12 meters wide, with one side leaning against the wall. How long does he need to fence the vegetable field at least? (column comprehensive formula)
张伯伯的菜地长25米，宽12米，一边靠着围墙．他要给菜地围上篱笆，至少需要多长？(列综合算式)
<gadget id="calculator">12 * 2</gadget>
<output>24</output>

<gadget id="calculator">25 + 24</gadget>
<output>49</output>

<result>49</result>