Arrange nine consecutive positive integers from small to large, the sum of the smallest four numbers is 58, what is the sum of the largest three numbers?
将九个连续正整数从小到大排列，最小的四个数的总和是58，那么最大的三个数的总和是多少．
<gadget id="calculator">58 - 1 - 2 - 3</gadget>
<output>52</output>

<gadget id="calculator">52 / 4</gadget>
<output>13</output>

<gadget id="calculator">13 + 6</gadget>
<output>19</output>

<gadget id="calculator">13 + 7</gadget>
<output>20</output>

<gadget id="calculator">13 + 8</gadget>
<output>21</output>

<gadget id="calculator">19 + 20 + 21</gadget>
<output>60</output>

<result>60</result>