$9\mathrm{.}3\mathrm{.}2$: Instance methods.

$568944\mathrm{.}4229274,p2J7$

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auditorium$1$ and auditorium$2$ are instances of the Auditorium class. Attributes num$\_$rows and num$\_$columns of both auditorium$1$

and auditorium$2$ are read from input. In the Auditorium class, define instance method compute$\_$size$()$ with self as the parameter

to return the product of attributes num$\_$rows and num$\_$columns.

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