How many of the largest three-digit numbers are divisible by 3?
最大的三位数中，能被3整除的数共有多少个．
<gadget id="calculator">333 * 3</gadget>
<output>999</output>

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

<gadget id="calculator">999 - 102</gadget>
<output>897</output>

<gadget id="calculator">897 / 3</gadget>
<output>299</output>

<gadget id="calculator">299 + 1</gadget>
<output>300</output>

<result>300</result>