import java.util.Scanner;

class Main {
    public static void main(String args[]){
	Scanner sc = new Scanner(System.in);

	int a,b,t,sum;
	a = sc.nextInt();
	b = sc.nextInt();
	t = sc.nextInt();

	sum = (t/a) * b;
	System.out.println(sum);
    }
}

	
	

/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