#include<bits/stdc++.h>
using namespace std;
int main(){
	int m,n,s,x,h;
	cin>>m>>n>>s;
	x=s/n;
	h=m*x;
	printf("%d",h);
} 
/**************************************************************
	Problem: 1323
	User: xiaojingxuan
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2072 kb
****************************************************************/