import java.math.BigDecimal;
import java.util.Scanner;

public 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();
		CountNumberOfCookies countNumberOfCookies = new CountNumberOfCookies();

		System.out.println(countNumberOfCookies.getCount(A, B, T));
	}
}

class CountNumberOfCookies {
	public int getCount(int A, int B, int T) {
		int cookieCount = 0;		
		BigDecimal repeatCount = new BigDecimal((T+0.5) / A);
		cookieCount = B * repeatCount.setScale(0, BigDecimal.ROUND_DOWN).intValue();
		return cookieCount;
	}
}
/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