Xiao Ming and Xiao Dong participate in the sports meeting and participate in one of the four events of long jump, high jump, 100 meters, and 200 meters (two people can apply for the same event at the same time), how many different situations will there be in the registration results?
小明与小冬参加运动会，参加在跳远、跳高、100米、200米四个项目中的一项比赛(可以两人同时报同一项目)，报名的结果会出现多少种不同的情况？
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">4 * (3/2)</gadget>
<output>6</output>

<gadget id="calculator">6 + 4</gadget>
<output>10</output>

<result>10</result>