Big Big Wolf bought his son a book called "300 Sheep Catch Book". This book has 301 pages in total. How many numbers are used for the page numbers of this book?
灰太狼给儿子买了一本叫《捕羊宝典300篇》的书，这本书共301页，这本书的页码共用了多少个数字．
<gadget id="calculator">9 + 180 + 606</gadget>
<output>795</output>

<result>795</result>