#include <bits/stdc++.h>
using namespace std;
int main(){
	int m,n,s,k,p;
	cin>>m>>n>>s;
	k=s/n;
	p=m*k;
	cout<<p;
	return 0;
}
/**************************************************************
	Problem: 1323
	User: tonghuatao
	Language: C++
	Result: Accepted
	Time:14 ms
	Memory:2072 kb
****************************************************************/