import java.util.Scanner;

class Employee{
    String name;
    int id;
    float salary;
    
    Employee(String name , int id , float salary){
        this.name = name;
        this.id = id;
        this.salary = salary;
    }
    float calsal(){
        return salary*1.20f;
    }
}

public class Main{
    public static void main(String[] args){
        
        Scanner sc = new Scanner(System.in);
        
        String name = sc.nextLine().trim();
        if(!sc.hasNextInt()){
            System.out.println("Invalid input");
            return;
        }
        int id = sc.nextInt();
        if(!sc.hasNextFloat()){
            System.out.println("Invalid input");
            return;
        }
        float salary = sc.nextFloat();
        
        if(name.length==0||id<0||salary<1000.0||salary>100000.0){
            System.out.println("Invalid input");
            return;
        }
        Employee emp = new Employee(name,id,salary);
        float sal = emp.calsal();
        System.out.printf("%.2f",sal);
    }
}