There are between 30 and 100 books on a shelf, among which (1/5) are comic books and (1/9) are story books. How many books are there at most on the shelf?
一个书架子上存书的本书在30～100之间，其中(1/5)是连环画，(1/9)是故事书，书架上存书最多有多少本．
<result>90</result>