import java.util.*;

public class Main{
  public static void main(String[] args) {
    Scanner sc=new Scanner(System.in);
    int a=sc.nextInt();
    int b=sc.nextInt();
    double t=sc.nextDouble();

    int start=1;
    int count=0;

    while(t+0.5>=a*start){

      start++;
      count++;
    }

    System.out.println(count*b);

  }
} import java.util.*; util.* java public class Main{
  public static void main(String[] args) {
    Scanner sc=new Scanner(System.in);
    int a=sc.nextInt();
    int b=sc.nextInt();
    double t=sc.nextDouble();

    int start=1;
    int count=0;

    while(t+0.5>=a*start){

      start++;
      count++;
    }

    System.out.println(count*b);

  }
} Main public static void main(String[] args) {
    Scanner sc=new Scanner(System.in);
    int a=sc.nextInt();
    int b=sc.nextInt();
    double t=sc.nextDouble();

    int start=1;
    int count=0;

    while(t+0.5>=a*start){

      start++;
      count++;
    }

    System.out.println(count*b);

  } main {
    Scanner sc=new Scanner(System.in);
    int a=sc.nextInt();
    int b=sc.nextInt();
    double t=sc.nextDouble();

    int start=1;
    int count=0;

    while(t+0.5>=a*start){

      start++;
      count++;
    }

    System.out.println(count*b);

  } Scanner sc=new Scanner(System.in); sc new Scanner(System.in) int a=sc.nextInt(); a sc.nextInt() sc.nextInt sc int b=sc.nextInt(); b sc.nextInt() sc.nextInt sc double t=sc.nextDouble(); t sc.nextDouble() sc.nextDouble sc int start=1; start 1 int count=0; count 0 while(t+0.5>=a*start){

      start++;
      count++;
    } t+0.5>=a*start t+0.5 t 0.5 a*start a start {

      start++;
      count++;
    } start++ start count++ count System.out.println(count*b) System.out.println System.out System System.out count*b count b String[] args args public class Main{
  public static void main(String[] args) {
    Scanner sc=new Scanner(System.in);
    int a=sc.nextInt();
    int b=sc.nextInt();
    double t=sc.nextDouble();

    int start=1;
    int count=0;

    while(t+0.5>=a*start){

      start++;
      count++;
    }

    System.out.println(count*b);

  }
} public class Main{
  public static void main(String[] args) {
    Scanner sc=new Scanner(System.in);
    int a=sc.nextInt();
    int b=sc.nextInt();
    double t=sc.nextDouble();

    int start=1;
    int count=0;

    while(t+0.5>=a*start){

      start++;
      count++;
    }

    System.out.println(count*b);

  }
} Main
import java.util.*;

public class Main{
  public static void main(String[] args) {
    Scanner sc=new Scanner(System.in);
    int a=sc.nextInt();
    int b=sc.nextInt();
    double t=sc.nextDouble();

    int start=1;
    int count=0;

    while(t+0.5>=a*start){

      start++;
      count++;
    }

    System.out.println(count*b);

  }
}
