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

#include<bits/stdc++.h>

using namespace std;

int main(){

    int m,n,s,mj;

    cin>>m>>n>>s;

    mj=s/n*m;

    cout<<mj;

    return 0;

}