#include<iostream>
using namespace std;
int main(){
	int m,n,s;
	cin>>m>>n>>s;
	int width=s/n;
	int original_area=m*width;
	cout<<original_area<<endl;
	return 0;
}
/**************************************************************
	Problem: 1323
	User: linyuhang
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/