import java.io.PrintStream;
import java.util.Scanner;

public class Main {
    static final PrintStream so = System.out;
    static final Scanner sc = new Scanner(System.in);
    
    public static void main(String[] args) {
        int A = ni();
        int B = ni();
        int T = ni();
        so.println(T/A * B);
    }
    
    static long gcd(long m, long n) {
        if(m < n) return gcd(n, m);
        if(n == 0) return m;
        return gcd(n, m % n);
    }
        
       
    static int ni() {
        return sc.nextInt();
    }
    
    static long nl() {
        return sc.nextLong();
    }

    static char[] nsToChars() {
        return sc.next().toCharArray();
    }
} import java.io.PrintStream; PrintStream java.io import java.util.Scanner; Scanner java.util public class Main {
    static final PrintStream so = System.out;
    static final Scanner sc = new Scanner(System.in);
    
    public static void main(String[] args) {
        int A = ni();
        int B = ni();
        int T = ni();
        so.println(T/A * B);
    }
    
    static long gcd(long m, long n) {
        if(m < n) return gcd(n, m);
        if(n == 0) return m;
        return gcd(n, m % n);
    }
        
       
    static int ni() {
        return sc.nextInt();
    }
    
    static long nl() {
        return sc.nextLong();
    }

    static char[] nsToChars() {
        return sc.next().toCharArray();
    }
} Main static final PrintStream so = System.out; so System.out System System.out static final Scanner sc = new Scanner(System.in); sc new Scanner(System.in) public static void main(String[] args) {
        int A = ni();
        int B = ni();
        int T = ni();
        so.println(T/A * B);
    } main {
        int A = ni();
        int B = ni();
        int T = ni();
        so.println(T/A * B);
    } int A = ni(); A ni() ni int B = ni(); B ni() ni int T = ni(); T ni() ni so.println(T/A * B) so.println so T/A * B T/A T A B String[] args args static long gcd(long m, long n) {
        if(m < n) return gcd(n, m);
        if(n == 0) return m;
        return gcd(n, m % n);
    } gcd {
        if(m < n) return gcd(n, m);
        if(n == 0) return m;
        return gcd(n, m % n);
    } if(m < n) return gcd(n, m); m < n m n return gcd(n, m); gcd(n, m) gcd n m if(n == 0) return m; n == 0 n 0 return m; m return gcd(n, m % n); gcd(n, m % n) gcd n m % n m n long m m long n n static int ni() {
        return sc.nextInt();
    } ni {
        return sc.nextInt();
    } return sc.nextInt(); sc.nextInt() sc.nextInt sc static long nl() {
        return sc.nextLong();
    } nl {
        return sc.nextLong();
    } return sc.nextLong(); sc.nextLong() sc.nextLong sc static char[] nsToChars() {
        return sc.next().toCharArray();
    } nsToChars {
        return sc.next().toCharArray();
    } return sc.next().toCharArray(); sc.next().toCharArray() sc.next().toCharArray sc.next() sc.next sc public class Main {
    static final PrintStream so = System.out;
    static final Scanner sc = new Scanner(System.in);
    
    public static void main(String[] args) {
        int A = ni();
        int B = ni();
        int T = ni();
        so.println(T/A * B);
    }
    
    static long gcd(long m, long n) {
        if(m < n) return gcd(n, m);
        if(n == 0) return m;
        return gcd(n, m % n);
    }
        
       
    static int ni() {
        return sc.nextInt();
    }
    
    static long nl() {
        return sc.nextLong();
    }

    static char[] nsToChars() {
        return sc.next().toCharArray();
    }
} public class Main {
    static final PrintStream so = System.out;
    static final Scanner sc = new Scanner(System.in);
    
    public static void main(String[] args) {
        int A = ni();
        int B = ni();
        int T = ni();
        so.println(T/A * B);
    }
    
    static long gcd(long m, long n) {
        if(m < n) return gcd(n, m);
        if(n == 0) return m;
        return gcd(n, m % n);
    }
        
       
    static int ni() {
        return sc.nextInt();
    }
    
    static long nl() {
        return sc.nextLong();
    }

    static char[] nsToChars() {
        return sc.next().toCharArray();
    }
} Main
import java.io.PrintStream;
import java.util.Scanner;

public class Main {
    static final PrintStream so = System.out;
    static final Scanner sc = new Scanner(System.in);
    
    public static void main(String[] args) {
        int A = ni();
        int B = ni();
        int T = ni();
        so.println(T/A * B);
    }
    
    static long gcd(long m, long n) {
        if(m < n) return gcd(n, m);
        if(n == 0) return m;
        return gcd(n, m % n);
    }
        
       
    static int ni() {
        return sc.nextInt();
    }
    
    static long nl() {
        return sc.nextLong();
    }

    static char[] nsToChars() {
        return sc.next().toCharArray();
    }
}
