import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
	public static void main(String[] args) throws NumberFormatException, IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		String str = br.readLine();

		int A = Integer.parseInt(str.split(" ")[0]);
		int B = Integer.parseInt(str.split(" ")[1]);
		int t = Integer.parseInt(str.split(" ")[2]);


		int bcount = (t-(t%A))/A;

		System.out.println(bcount*B);

	}

} import java.io.BufferedReader; BufferedReader java.io import java.io.IOException; IOException java.io import java.io.InputStreamReader; InputStreamReader java.io public class Main {
	public static void main(String[] args) throws NumberFormatException, IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		String str = br.readLine();

		int A = Integer.parseInt(str.split(" ")[0]);
		int B = Integer.parseInt(str.split(" ")[1]);
		int t = Integer.parseInt(str.split(" ")[2]);


		int bcount = (t-(t%A))/A;

		System.out.println(bcount*B);

	}

} Main public static void main(String[] args) throws NumberFormatException, IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		String str = br.readLine();

		int A = Integer.parseInt(str.split(" ")[0]);
		int B = Integer.parseInt(str.split(" ")[1]);
		int t = Integer.parseInt(str.split(" ")[2]);


		int bcount = (t-(t%A))/A;

		System.out.println(bcount*B);

	} main {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		String str = br.readLine();

		int A = Integer.parseInt(str.split(" ")[0]);
		int B = Integer.parseInt(str.split(" ")[1]);
		int t = Integer.parseInt(str.split(" ")[2]);


		int bcount = (t-(t%A))/A;

		System.out.println(bcount*B);

	} BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); br new BufferedReader(new InputStreamReader(System.in)) String str = br.readLine(); str br.readLine() br.readLine br int A = Integer.parseInt(str.split(" ")[0]); A Integer.parseInt(str.split(" ")[0]) Integer.parseInt Integer str.split(" ")[0] str.split(" ") str.split str " " 0 int B = Integer.parseInt(str.split(" ")[1]); B Integer.parseInt(str.split(" ")[1]) Integer.parseInt Integer str.split(" ")[1] str.split(" ") str.split str " " 1 int t = Integer.parseInt(str.split(" ")[2]); t Integer.parseInt(str.split(" ")[2]) Integer.parseInt Integer str.split(" ")[2] str.split(" ") str.split str " " 2 int bcount = (t-(t%A))/A; bcount (t-(t%A))/A (t-(t%A)) t (t%A) t A A System.out.println(bcount*B) System.out.println System.out System System.out bcount*B bcount B String[] args args public class Main {
	public static void main(String[] args) throws NumberFormatException, IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		String str = br.readLine();

		int A = Integer.parseInt(str.split(" ")[0]);
		int B = Integer.parseInt(str.split(" ")[1]);
		int t = Integer.parseInt(str.split(" ")[2]);


		int bcount = (t-(t%A))/A;

		System.out.println(bcount*B);

	}

} public class Main {
	public static void main(String[] args) throws NumberFormatException, IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		String str = br.readLine();

		int A = Integer.parseInt(str.split(" ")[0]);
		int B = Integer.parseInt(str.split(" ")[1]);
		int t = Integer.parseInt(str.split(" ")[2]);


		int bcount = (t-(t%A))/A;

		System.out.println(bcount*B);

	}

} Main
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
	public static void main(String[] args) throws NumberFormatException, IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		String str = br.readLine();

		int A = Integer.parseInt(str.split(" ")[0]);
		int B = Integer.parseInt(str.split(" ")[1]);
		int t = Integer.parseInt(str.split(" ")[2]);


		int bcount = (t-(t%A))/A;

		System.out.println(bcount*B);

	}

}
