import java.util.*;
 
class Main {
    public static void main(String[] args) {
      
        Scanner sc = new Scanner(System.in);
       int A = sc.nextInt();
        int B = sc.nextInt();
        int T = sc.nextInt();
        int sam = 0;
      
      for(int i=1;i<T+1;i++){
       if(A*i<=T){
         sam += B;
       }
      }

      System.out.print(sam);


    }
}
/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