Divide 198 natural numbers 1, 2, 3...198 into three groups on average, and make the average numbers of these three groups equal, then, what is the sum of these three average numbers?
把198个自然数1、2、3…198平均分成三组，并使这三组数的平均数相等，那么，这三个平均数的和是多少？
<gadget id="calculator">1 + 198</gadget>
<output>199</output>

<gadget id="calculator">198 / 2 / 3 / 3</gadget>
<output>11</output>

<gadget id="calculator">199 * 11 * 3</gadget>
<output>6_567</output>

<result>6_567</result>