There is a column of numbers, 2, 5, 8, 11, 14, ... then what number is 104 in this column of numbers.
有一列数，2、5、8、11、14、…则104在这列数中是第多少个数．
<gadget id="calculator">104 - 2</gadget>
<output>102</output>

<gadget id="calculator">102 / 3</gadget>
<output>34</output>

<gadget id="calculator">34 + 1</gadget>
<output>35</output>

<result>35</result>