#include<bits/stdc++.h>
using namespace std;
int main(){

	int n,m,s,b;
	cin>>n>>m>>s;
	b=s/m;
	cout<<n*b<<endl;


	return 0;
}

/**************************************************************
	Problem: 1323
	User: admin
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/