During the New Year’s Day, Hope Elementary School organized middle-grade students to visit the Olympic Stadium. 246 third-grade students went there, and half of the fourth-grade students went there. How many people went to the two grades altogether?
元旦期间，希望小学组织中年级学生到奥运馆参观，三年级去了246人，四年级去的人数是三年级的一半，两个年级一共去了多少人？
<gadget id="calculator">246 / 2</gadget>
<output>123</output>

<gadget id="calculator">123 + 246</gadget>
<output>369</output>

<result>369</result>