The school held a table tennis competition. There were 36 participants in the fourth grade, and the number of participants in the third grade was 10 less than twice that of the fourth grade. How many people from these two grades participated in this competition?
学校举行乒乓球比赛，四年级有36人参加，三年级参加的人数比四年级的2倍少10人．这两个年级共有多少人参加这次比赛？
<gadget id="calculator">36 * 2</gadget>
<output>72</output>

<gadget id="calculator">72 - 10</gadget>
<output>62</output>

<gadget id="calculator">62 + 36</gadget>
<output>98</output>

<result>98</result>