#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,m,k,l;
    cin>>n>>k>>l;
    cout<<n*(l/k);
    
}
/**************************************************************
	Problem: 1323
	User: zhengzihao
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/