#include <iostream>
using namespace std;
int main() {
int n,m,k;
cin>>n>>m>>k;
cout<<m/n*k;
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKaW50IG1haW4oKSB7CglpbnQgbixtLGs7CgoJY2luPj5uPj5tPj5rOwoJCgljb3V0PDxtL24qazsKCQoJcmV0dXJuIDA7Cn0=