import java.io.*;
import java.util.*;
import java.lang.*;
 
public class Main {
	
	public static void main(String[] args) {
      Scanner scan = new Scanner(System.in);
      int A =  scan.nextInt();
      int B =  scan.nextInt();
      int T =  scan.nextInt();
      int i = 0, count = 0;;
      while (i+A <= (T+0.5))
      {
        count++;
         i += A;
      }
      System.out.println(B*count);
    }
} import java.io.*; io.* java import java.util.*; util.* java import java.lang.*; lang.* java public class Main {
	
	public static void main(String[] args) {
      Scanner scan = new Scanner(System.in);
      int A =  scan.nextInt();
      int B =  scan.nextInt();
      int T =  scan.nextInt();
      int i = 0, count = 0;;
      while (i+A <= (T+0.5))
      {
        count++;
         i += A;
      }
      System.out.println(B*count);
    }
} Main public static void main(String[] args) {
      Scanner scan = new Scanner(System.in);
      int A =  scan.nextInt();
      int B =  scan.nextInt();
      int T =  scan.nextInt();
      int i = 0, count = 0;;
      while (i+A <= (T+0.5))
      {
        count++;
         i += A;
      }
      System.out.println(B*count);
    } main {
      Scanner scan = new Scanner(System.in);
      int A =  scan.nextInt();
      int B =  scan.nextInt();
      int T =  scan.nextInt();
      int i = 0, count = 0;;
      while (i+A <= (T+0.5))
      {
        count++;
         i += A;
      }
      System.out.println(B*count);
    } Scanner scan = new Scanner(System.in); scan new Scanner(System.in) int A =  scan.nextInt(); A scan.nextInt() scan.nextInt scan int B =  scan.nextInt(); B scan.nextInt() scan.nextInt scan int T =  scan.nextInt(); T scan.nextInt() scan.nextInt scan int i = 0 i 0 count = 0; count 0 while (i+A <= (T+0.5))
      {
        count++;
         i += A;
      } i+A <= (T+0.5) i+A i A (T+0.5) T 0.5 {
        count++;
         i += A;
      } count++ count i += A i A System.out.println(B*count) System.out.println System.out System System.out B*count B count String[] args args public class Main {
	
	public static void main(String[] args) {
      Scanner scan = new Scanner(System.in);
      int A =  scan.nextInt();
      int B =  scan.nextInt();
      int T =  scan.nextInt();
      int i = 0, count = 0;;
      while (i+A <= (T+0.5))
      {
        count++;
         i += A;
      }
      System.out.println(B*count);
    }
} public class Main {
	
	public static void main(String[] args) {
      Scanner scan = new Scanner(System.in);
      int A =  scan.nextInt();
      int B =  scan.nextInt();
      int T =  scan.nextInt();
      int i = 0, count = 0;;
      while (i+A <= (T+0.5))
      {
        count++;
         i += A;
      }
      System.out.println(B*count);
    }
} Main
import java.io.*;
import java.util.*;
import java.lang.*;
 
public class Main {
	
	public static void main(String[] args) {
      Scanner scan = new Scanner(System.in);
      int A =  scan.nextInt();
      int B =  scan.nextInt();
      int T =  scan.nextInt();
      int i = 0, count = 0;;
      while (i+A <= (T+0.5))
      {
        count++;
         i += A;
      }
      System.out.println(B*count);
    }
}