There are 54 students in a class, 44 can play table tennis, 42 can swim, 5 can neither play table tennis nor swim, how many can play table tennis and swim?
某班有54名学生，会打乒乓球的有44人，会游泳的有42人，既不会打乒乓球又不会游泳的有5人，会打乒乓球和会游泳的有多少人？
<gadget id="calculator">44 + 42</gadget>
<output>86</output>

<gadget id="calculator">54 - 5</gadget>
<output>49</output>

<gadget id="calculator">86 - 49</gadget>
<output>37</output>

<result>37</result>