import java.util.*;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		
		Scanner s=new Scanner(System.in);
		
		int a=s.nextInt();
		int b=s.nextInt();
		int t=s.nextInt();
		
		int ans=0,cur=a;
		
		while(cur<=t) {
			ans+=b;
			cur+=a;
		}
		
		System.out.println(ans);
	}

} import java.util.*; util.* java public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		
		Scanner s=new Scanner(System.in);
		
		int a=s.nextInt();
		int b=s.nextInt();
		int t=s.nextInt();
		
		int ans=0,cur=a;
		
		while(cur<=t) {
			ans+=b;
			cur+=a;
		}
		
		System.out.println(ans);
	}

} Main public static void main(String[] args) {
		// TODO Auto-generated method stub

		
		Scanner s=new Scanner(System.in);
		
		int a=s.nextInt();
		int b=s.nextInt();
		int t=s.nextInt();
		
		int ans=0,cur=a;
		
		while(cur<=t) {
			ans+=b;
			cur+=a;
		}
		
		System.out.println(ans);
	} main {
		// TODO Auto-generated method stub

		
		Scanner s=new Scanner(System.in);
		
		int a=s.nextInt();
		int b=s.nextInt();
		int t=s.nextInt();
		
		int ans=0,cur=a;
		
		while(cur<=t) {
			ans+=b;
			cur+=a;
		}
		
		System.out.println(ans);
	} Scanner s=new Scanner(System.in); s new Scanner(System.in) int a=s.nextInt(); a s.nextInt() s.nextInt s int b=s.nextInt(); b s.nextInt() s.nextInt s int t=s.nextInt(); t s.nextInt() s.nextInt s int ans=0 ans 0 cur=a; cur a while(cur<=t) {
			ans+=b;
			cur+=a;
		} cur<=t cur t {
			ans+=b;
			cur+=a;
		} ans+=b ans b cur+=a cur a System.out.println(ans) System.out.println System.out System System.out ans String[] args args public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		
		Scanner s=new Scanner(System.in);
		
		int a=s.nextInt();
		int b=s.nextInt();
		int t=s.nextInt();
		
		int ans=0,cur=a;
		
		while(cur<=t) {
			ans+=b;
			cur+=a;
		}
		
		System.out.println(ans);
	}

} public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		
		Scanner s=new Scanner(System.in);
		
		int a=s.nextInt();
		int b=s.nextInt();
		int t=s.nextInt();
		
		int ans=0,cur=a;
		
		while(cur<=t) {
			ans+=b;
			cur+=a;
		}
		
		System.out.println(ans);
	}

} Main
import java.util.*;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		
		Scanner s=new Scanner(System.in);
		
		int a=s.nextInt();
		int b=s.nextInt();
		int t=s.nextInt();
		
		int ans=0,cur=a;
		
		while(cur<=t) {
			ans+=b;
			cur+=a;
		}
		
		System.out.println(ans);
	}

}
