import java.util.Scanner;

public class Main { 
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String[] line = sc.nextLine().split(" ");
		int productBis = Integer.parseInt(line[0]);
		int neededTime = Integer.parseInt(line[1]);
		int allowedTime = Integer.parseInt(line[2]);
		
		System.out.println((allowedTime/productBis)*neededTime);

		
		
		
	}
}
	
	
/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