import java.util.*;
 
public class Main{
	public  static void main(String[] args){
    	Scanner Scan = new Scanner(System.in);
      	int A = Scan.nextInt();
      	int B = Scan.nextInt();
      	int T = Scan.nextInt();
      	int preans = T / A;
      	int ans = B * preans;
      	System.out.print(ans);
      	Scan.close();
    }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz