A book has 191 pages, how many numbers should the typesetting workers use when numbering the pages of this book?
一本书有191页，排版工人在编这本书的页码时，一共要用多少个数字．
<gadget id="calculator">90 * 2</gadget>
<output>180</output>

<gadget id="calculator">92 * 3</gadget>
<output>276</output>

<gadget id="calculator">9 + 180 + 276</gadget>
<output>465</output>

<result>465</result>