There are 4 students agreeing to go online, but now there are only 3 computers, so two students have to use the same computer, how many different ways are there in total?
有4名同学约定去上网，现只有3台电脑，只好有两个同学上同一台电脑，则共有多少种不同的上网方式．
<gadget id="calculator">6 * 6</gadget>
<output>36</output>

<result>36</result>