#include<bits/stdc++.h>
using namespace std;
int main() {
	int m,n,s,k,j;
	cin>>m>>n>>s;
	k=s/n;
	j=m*k;
	cout<<j;
    return 0;
}

/**************************************************************
	Problem: 1323
	User: HCW
	Language: C++
	Result: Accepted
	Time:15 ms
	Memory:2072 kb
****************************************************************/