import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		try (Scanner sc = new Scanner(System.in)) {
			int A, B, T;
			A = sc.nextInt();
			B = sc.nextInt();
			T = sc.nextInt();
			
			int sum = 0;
			
			for (int time = 1; time <= T; time++) {
				if (time % A == 0) {
					sum += B;
				}
			}
			System.out.println(sum);
			
		} catch (Exception e) {
			// TODO: handle exception
		}
	}

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

	public static void main(String[] args) {
		try (Scanner sc = new Scanner(System.in)) {
			int A, B, T;
			A = sc.nextInt();
			B = sc.nextInt();
			T = sc.nextInt();
			
			int sum = 0;
			
			for (int time = 1; time <= T; time++) {
				if (time % A == 0) {
					sum += B;
				}
			}
			System.out.println(sum);
			
		} catch (Exception e) {
			// TODO: handle exception
		}
	}

} Main public static void main(String[] args) {
		try (Scanner sc = new Scanner(System.in)) {
			int A, B, T;
			A = sc.nextInt();
			B = sc.nextInt();
			T = sc.nextInt();
			
			int sum = 0;
			
			for (int time = 1; time <= T; time++) {
				if (time % A == 0) {
					sum += B;
				}
			}
			System.out.println(sum);
			
		} catch (Exception e) {
			// TODO: handle exception
		}
	} main {
		try (Scanner sc = new Scanner(System.in)) {
			int A, B, T;
			A = sc.nextInt();
			B = sc.nextInt();
			T = sc.nextInt();
			
			int sum = 0;
			
			for (int time = 1; time <= T; time++) {
				if (time % A == 0) {
					sum += B;
				}
			}
			System.out.println(sum);
			
		} catch (Exception e) {
			// TODO: handle exception
		}
	} try (Scanner sc = new Scanner(System.in)) {
			int A, B, T;
			A = sc.nextInt();
			B = sc.nextInt();
			T = sc.nextInt();
			
			int sum = 0;
			
			for (int time = 1; time <= T; time++) {
				if (time % A == 0) {
					sum += B;
				}
			}
			System.out.println(sum);
			
		} catch (Exception e) {
			// TODO: handle exception
		} catch (Exception e) {
			// TODO: handle exception
		} Exception e {
			// TODO: handle exception
		} {
			int A, B, T;
			A = sc.nextInt();
			B = sc.nextInt();
			T = sc.nextInt();
			
			int sum = 0;
			
			for (int time = 1; time <= T; time++) {
				if (time % A == 0) {
					sum += B;
				}
			}
			System.out.println(sum);
			
		} Scanner sc = new Scanner(System.in) Scanner sc = new Scanner(System.in) new Scanner(System.in) int A A B B T; T A = sc.nextInt() A sc.nextInt() sc.nextInt sc B = sc.nextInt() B sc.nextInt() sc.nextInt sc T = sc.nextInt() T sc.nextInt() sc.nextInt sc int sum = 0; sum 0 for (int time = 1; time <= T; time++) {
				if (time % A == 0) {
					sum += B;
				}
			} int time = 1; int time = 1; time 1 time <= T time T time++ time++ time {
				if (time % A == 0) {
					sum += B;
				}
			} {
				if (time % A == 0) {
					sum += B;
				}
			} if (time % A == 0) {
					sum += B;
				} time % A == 0 time % A time 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) {
		try (Scanner sc = new Scanner(System.in)) {
			int A, B, T;
			A = sc.nextInt();
			B = sc.nextInt();
			T = sc.nextInt();
			
			int sum = 0;
			
			for (int time = 1; time <= T; time++) {
				if (time % A == 0) {
					sum += B;
				}
			}
			System.out.println(sum);
			
		} catch (Exception e) {
			// TODO: handle exception
		}
	}

} public class Main {

	public static void main(String[] args) {
		try (Scanner sc = new Scanner(System.in)) {
			int A, B, T;
			A = sc.nextInt();
			B = sc.nextInt();
			T = sc.nextInt();
			
			int sum = 0;
			
			for (int time = 1; time <= T; time++) {
				if (time % A == 0) {
					sum += B;
				}
			}
			System.out.println(sum);
			
		} catch (Exception e) {
			// TODO: handle exception
		}
	}

} Main
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		try (Scanner sc = new Scanner(System.in)) {
			int A, B, T;
			A = sc.nextInt();
			B = sc.nextInt();
			T = sc.nextInt();
			
			int sum = 0;
			
			for (int time = 1; time <= T; time++) {
				if (time % A == 0) {
					sum += B;
				}
			}
			System.out.println(sum);
			
		} catch (Exception e) {
			// TODO: handle exception
		}
	}

}