32 students from Class 1 of the fifth grade of Yale School participated in the mathematics competition, 27 students participated in the English competition, and 22 students participated in the Chinese competition. Among them, 12 students participated in mathematics and English, and 14 students participated in Chinese and English , there are 10 people who participated in the two subjects of mathematics and Chinese, so how many people are there in class one of the fifth grade?
雅乐学校五年级一班有32人参加数学竞赛，有27人参加英语竞赛，有22人参加语文竞赛，其中参加了数学和英语两科的有12人，参加了语文和英语的有14人，参加了数学和语文两科的有10人，那么五年级一班至少有多少人多少
<gadget id="calculator">81 - 30 - 4</gadget>
<output>47</output>

<result>47</result>