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

public class Main {

	public static void main(String[] args) {

		int a = 0;
		int b = 0;
		int t = 0;
		try (BufferedReader br = new BufferedReader(new InputStreamReader(
				System.in))) {
			String[] tmp = br.readLine().split("\\s");
			a = Integer.parseInt(tmp[0]);
			b = Integer.parseInt(tmp[1]);
			t = Integer.parseInt(tmp[2]);
		} catch (IOException e) {
			e.printStackTrace();
			System.exit(1);
		}

		int sum = 0;
		for (int i = 1; i <= t; i++) {
			if (i % a == 0) {
				sum += b;
			}
		}

		System.out.println(sum);
	}

} 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) {

		int a = 0;
		int b = 0;
		int t = 0;
		try (BufferedReader br = new BufferedReader(new InputStreamReader(
				System.in))) {
			String[] tmp = br.readLine().split("\\s");
			a = Integer.parseInt(tmp[0]);
			b = Integer.parseInt(tmp[1]);
			t = Integer.parseInt(tmp[2]);
		} catch (IOException e) {
			e.printStackTrace();
			System.exit(1);
		}

		int sum = 0;
		for (int i = 1; i <= t; i++) {
			if (i % a == 0) {
				sum += b;
			}
		}

		System.out.println(sum);
	}

} Main public static void main(String[] args) {

		int a = 0;
		int b = 0;
		int t = 0;
		try (BufferedReader br = new BufferedReader(new InputStreamReader(
				System.in))) {
			String[] tmp = br.readLine().split("\\s");
			a = Integer.parseInt(tmp[0]);
			b = Integer.parseInt(tmp[1]);
			t = Integer.parseInt(tmp[2]);
		} catch (IOException e) {
			e.printStackTrace();
			System.exit(1);
		}

		int sum = 0;
		for (int i = 1; i <= t; i++) {
			if (i % a == 0) {
				sum += b;
			}
		}

		System.out.println(sum);
	} main {

		int a = 0;
		int b = 0;
		int t = 0;
		try (BufferedReader br = new BufferedReader(new InputStreamReader(
				System.in))) {
			String[] tmp = br.readLine().split("\\s");
			a = Integer.parseInt(tmp[0]);
			b = Integer.parseInt(tmp[1]);
			t = Integer.parseInt(tmp[2]);
		} catch (IOException e) {
			e.printStackTrace();
			System.exit(1);
		}

		int sum = 0;
		for (int i = 1; i <= t; i++) {
			if (i % a == 0) {
				sum += b;
			}
		}

		System.out.println(sum);
	} int a = 0; a 0 int b = 0; b 0 int t = 0; t 0 try (BufferedReader br = new BufferedReader(new InputStreamReader(
				System.in))) {
			String[] tmp = br.readLine().split("\\s");
			a = Integer.parseInt(tmp[0]);
			b = Integer.parseInt(tmp[1]);
			t = Integer.parseInt(tmp[2]);
		} catch (IOException e) {
			e.printStackTrace();
			System.exit(1);
		} catch (IOException e) {
			e.printStackTrace();
			System.exit(1);
		} IOException e {
			e.printStackTrace();
			System.exit(1);
		} e.printStackTrace() e.printStackTrace e System.exit(1) System.exit System 1 {
			String[] tmp = br.readLine().split("\\s");
			a = Integer.parseInt(tmp[0]);
			b = Integer.parseInt(tmp[1]);
			t = Integer.parseInt(tmp[2]);
		} BufferedReader br = new BufferedReader(new InputStreamReader(
				System.in)) BufferedReader br = new BufferedReader(new InputStreamReader(
				System.in)) new BufferedReader(new InputStreamReader(
				System.in)) String[] tmp = br.readLine().split("\\s"); tmp br.readLine().split("\\s") br.readLine().split br.readLine() br.readLine br "\\s" a = Integer.parseInt(tmp[0]) a Integer.parseInt(tmp[0]) Integer.parseInt Integer tmp[0] tmp 0 b = Integer.parseInt(tmp[1]) b Integer.parseInt(tmp[1]) Integer.parseInt Integer tmp[1] tmp 1 t = Integer.parseInt(tmp[2]) t Integer.parseInt(tmp[2]) Integer.parseInt Integer tmp[2] tmp 2 int sum = 0; sum 0 for (int i = 1; i <= t; i++) {
			if (i % a == 0) {
				sum += b;
			}
		} int i = 1; int i = 1; i 1 i <= t i t i++ i++ i {
			if (i % a == 0) {
				sum += b;
			}
		} {
			if (i % a == 0) {
				sum += b;
			}
		} if (i % a == 0) {
				sum += b;
			} i % a == 0 i % a i a 0 {
				sum += b;
			} sum += b sum b System.out.println(sum) System.out.println System.out System System.out sum String[] args args public class Main {

	public static void main(String[] args) {

		int a = 0;
		int b = 0;
		int t = 0;
		try (BufferedReader br = new BufferedReader(new InputStreamReader(
				System.in))) {
			String[] tmp = br.readLine().split("\\s");
			a = Integer.parseInt(tmp[0]);
			b = Integer.parseInt(tmp[1]);
			t = Integer.parseInt(tmp[2]);
		} catch (IOException e) {
			e.printStackTrace();
			System.exit(1);
		}

		int sum = 0;
		for (int i = 1; i <= t; i++) {
			if (i % a == 0) {
				sum += b;
			}
		}

		System.out.println(sum);
	}

} public class Main {

	public static void main(String[] args) {

		int a = 0;
		int b = 0;
		int t = 0;
		try (BufferedReader br = new BufferedReader(new InputStreamReader(
				System.in))) {
			String[] tmp = br.readLine().split("\\s");
			a = Integer.parseInt(tmp[0]);
			b = Integer.parseInt(tmp[1]);
			t = Integer.parseInt(tmp[2]);
		} catch (IOException e) {
			e.printStackTrace();
			System.exit(1);
		}

		int sum = 0;
		for (int i = 1; i <= t; i++) {
			if (i % a == 0) {
				sum += b;
			}
		}

		System.out.println(sum);
	}

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

public class Main {

	public static void main(String[] args) {

		int a = 0;
		int b = 0;
		int t = 0;
		try (BufferedReader br = new BufferedReader(new InputStreamReader(
				System.in))) {
			String[] tmp = br.readLine().split("\\s");
			a = Integer.parseInt(tmp[0]);
			b = Integer.parseInt(tmp[1]);
			t = Integer.parseInt(tmp[2]);
		} catch (IOException e) {
			e.printStackTrace();
			System.exit(1);
		}

		int sum = 0;
		for (int i = 1; i <= t; i++) {
			if (i % a == 0) {
				sum += b;
			}
		}

		System.out.println(sum);
	}

}