A class of 25 students participates in a mathematics competition. 19 people get the first question right, 14 people get the fifth question right, 10 people get both questions right, and how many people get both questions wrong?
某班25人参加数学竞赛，答对第一题的有19人，答对第五题的有14人，两题都答对的有10人，两题都答错的有多少人？
<gadget id="calculator">14 - 10</gadget>
<output>4</output>

<gadget id="calculator">19 + 4</gadget>
<output>23</output>

<gadget id="calculator">25 - 23</gadget>
<output>2</output>

<result>2</result>