package com.company;

import java.util.Scanner;

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

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

        for (int tab = 0; tab < counterTabs; tab++) {
            String webSite = scanner.nextLine();

            if ("Facebook".equals(webSite)) {
                salary -= 150;
            } else if ("Instagram".equals(webSite)) {
                salary -= 100;

            } else if ("Reddit".equals(webSite)) {
                salary -= 50;
            }
            if (salary <= 0){
                System.out.println("You have lost your salary.");
                break;
            }
        }
        if (salary > 0){
            System.out.println(salary);
        }
    }
}