import java.util.Scanner;

public class Salary {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int tabCounts = Integer.parseInt(scanner.nextLine());
        int salary = Integer.parseInt(scanner.nextLine());

        for (int i = 0; i > tabCounts; i++) {

            String site = scanner.nextLine();
            switch (site) {
                case "Facebook":
                    salary=salary-150;
                    break;
                case "Instagram":
                    salary=salary-100;
                    break;
                case "Reddit":
                    salary=salary-50;
                    break;
            }
            if (salary <=0){
                System.out.println("You have lost your salary");
                break;
            }
        }
if (salary>0){
    System.out.println(salary);
}

    }
}