Description

You bought a box of n apples, but unfortunately, a worm got into the box when you purchased it. The worm eats one apple every x hours. Assuming the worm does not start eating another apple before finishing the current one, how many complete apples will remain after y hours?

Input Format

The input consists of a single line containing three integers: n, x, and y.

Output Format

Output a single line with the number of remaining complete apples.

10 4 9

7