The sum of 9 consecutive natural numbers is 2007, what is the smallest natural number among them?
9个连续自然数的和是2007，其中最小的自然数是多少．
<gadget id="calculator">2_007 / 9</gadget>
<output>223</output>

<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">223 - 4</gadget>
<output>219</output>

<result>219</result>