import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		int T = sc.nextInt();
		sc.close();

		int total = 0;

		for(int second = 1; second <= T ; second++) {
			if(second % A == 0) {
				total +=  B;
//				System.out.println("Second:" +second);
//				System.out.println("Total:"+total);
			}
		}

		System.out.println(total);

	}

}
/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