Explanation

You bought a box of n apples, unfortunately a bug got mixed in when you finished. A bug can eat an apple every $x$ hours. Assuming the bug doesn't eat another apple before finishing one, how many complete apples do you have after $y$ hours?

Input format

Input only one line, including $n$, $x$, and $y$(all integers).

Output format

The output is only one line, with the remaining number of apples.

Example

10 4 9

7