import java.util.Scanner;

public class Main {
	static long n,k,m,l,a,b,c;
	static Scanner sc = new Scanner(System.in);
	public static void main(String[] args) {
		a=sc.nextInt();
		b=sc.nextInt();
		n=sc.nextInt();
		k=0;
		for(int i=1;i*a<=n;i++) {
			k+=b;
		}
		System.out.println(k);
    }
}

/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