There is a basketball game in school, and the score between teams A and B is 20:54. If team B does not score, how many goals must team A score at least 2 points to surpass team B?
学校进行篮球比赛，甲、乙两队比分20：54，在乙队不进球的情况下，甲队至少要进2分球多少个才能超过乙队．
<gadget id="calculator">54 - 20</gadget>
<output>34</output>

<gadget id="calculator">34 / 2</gadget>
<output>17</output>

<gadget id="calculator">17 + 1</gadget>
<output>18</output>

<result>18</result>