import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		try (final Scanner sc = new Scanner(System.in)) {
			Resolver resolver = new Resolver(sc);
			resolver.resolve();
		}
	}
	private static class Resolver
	{
		private final int a,b,t;
		private Resolver(final Scanner sc) {
			this.a = sc.nextInt();
			this.b = sc.nextInt();
			this.t = sc.nextInt();
		}
		private void resolve() {
			int k = t/a;
			System.out.println(b*k);
		}
	}
} import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args) {
		try (final Scanner sc = new Scanner(System.in)) {
			Resolver resolver = new Resolver(sc);
			resolver.resolve();
		}
	}
	private static class Resolver
	{
		private final int a,b,t;
		private Resolver(final Scanner sc) {
			this.a = sc.nextInt();
			this.b = sc.nextInt();
			this.t = sc.nextInt();
		}
		private void resolve() {
			int k = t/a;
			System.out.println(b*k);
		}
	}
} Main public static void main(String[] args) {
		try (final Scanner sc = new Scanner(System.in)) {
			Resolver resolver = new Resolver(sc);
			resolver.resolve();
		}
	} main {
		try (final Scanner sc = new Scanner(System.in)) {
			Resolver resolver = new Resolver(sc);
			resolver.resolve();
		}
	} try (final Scanner sc = new Scanner(System.in)) {
			Resolver resolver = new Resolver(sc);
			resolver.resolve();
		} {
			Resolver resolver = new Resolver(sc);
			resolver.resolve();
		} final Scanner sc = new Scanner(System.in) final Scanner sc = new Scanner(System.in) new Scanner(System.in) Resolver resolver = new Resolver(sc); resolver new Resolver(sc) resolver.resolve() resolver.resolve resolver String[] args args private static class Resolver
	{
		private final int a,b,t;
		private Resolver(final Scanner sc) {
			this.a = sc.nextInt();
			this.b = sc.nextInt();
			this.t = sc.nextInt();
		}
		private void resolve() {
			int k = t/a;
			System.out.println(b*k);
		}
	} Resolver private final int a a b b t; t private Resolver(final Scanner sc) {
			this.a = sc.nextInt();
			this.b = sc.nextInt();
			this.t = sc.nextInt();
		} Resolver {
			this.a = sc.nextInt();
			this.b = sc.nextInt();
			this.t = sc.nextInt();
		} this.a = sc.nextInt() this.a this this.a sc.nextInt() sc.nextInt sc this.b = sc.nextInt() this.b this this.b sc.nextInt() sc.nextInt sc this.t = sc.nextInt() this.t this this.t sc.nextInt() sc.nextInt sc final Scanner sc sc private void resolve() {
			int k = t/a;
			System.out.println(b*k);
		} resolve {
			int k = t/a;
			System.out.println(b*k);
		} int k = t/a; k t/a t a System.out.println(b*k) System.out.println System.out System System.out b*k b k public class Main {
	public static void main(String[] args) {
		try (final Scanner sc = new Scanner(System.in)) {
			Resolver resolver = new Resolver(sc);
			resolver.resolve();
		}
	}
	private static class Resolver
	{
		private final int a,b,t;
		private Resolver(final Scanner sc) {
			this.a = sc.nextInt();
			this.b = sc.nextInt();
			this.t = sc.nextInt();
		}
		private void resolve() {
			int k = t/a;
			System.out.println(b*k);
		}
	}
} public class Main {
	public static void main(String[] args) {
		try (final Scanner sc = new Scanner(System.in)) {
			Resolver resolver = new Resolver(sc);
			resolver.resolve();
		}
	}
	private static class Resolver
	{
		private final int a,b,t;
		private Resolver(final Scanner sc) {
			this.a = sc.nextInt();
			this.b = sc.nextInt();
			this.t = sc.nextInt();
		}
		private void resolve() {
			int k = t/a;
			System.out.println(b*k);
		}
	}
} Main
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		try (final Scanner sc = new Scanner(System.in)) {
			Resolver resolver = new Resolver(sc);
			resolver.resolve();
		}
	}
	private static class Resolver
	{
		private final int a,b,t;
		private Resolver(final Scanner sc) {
			this.a = sc.nextInt();
			this.b = sc.nextInt();
			this.t = sc.nextInt();
		}
		private void resolve() {
			int k = t/a;
			System.out.println(b*k);
		}
	}
}