The three groups of the environmental protection group collected a total of 98 cans, the second group collected 29, the first group collected 36, and the third group collected how many?
环保小组三个组一共收集了98个易拉罐，第二组收集了29个，第一组收集了36个，第三组收集了多少个？
<gadget id="calculator">98 - 29 - 36</gadget>
<output>33</output>

<result>33</result>