Deadpool is watching movies about Wolverine from different universes on a multiverse movie website. It is known that there are a total of movies, and each page of the website displays different movies (with the last page showing all remaining ones). Deadpool doesn't have much time, so he goes straight to the last page and watches all the movies from it.
Each movie lasts exactly minutes. How much time did he spend watching the movies?
输入格式
The first line contains three integers , , --- the number of movies, the number of movies on one page, and the duration of one movie.
输出格式
Output a single number , the amount of time that Deadpool will spend watching the movies.
样例
样例输入 1
20 3 60
样例输出 1
120
样例输入 2
65 10 30
样例输出 2
150
样例输入 3
100 20 90
样例输出 3
1800
数据范围与提示
In the first example, we have movies and movies on each page except the last one, so there are movies on the last page, and watching those two movies will take a total of minutes.
In the second example, there are a total of movies and movies per page, so there will be movies on the last page, and watching them will take minutes.
In the third example, there are movies, with movies per page, so there will be movies on the last page, and Deadpool will watch them for minutes.
