Sallary

import java.util.*;
        import java.util.regex.Matcher;
        import java.util.regex.Pattern;

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

        int count = Integer.parseInt(sc.nextLine());
        int salary = Integer.parseInt(sc.nextLine());


        for (int i = 1; i <= count; i++) {
            String type = sc.nextLine();
            switch (type){
                case "Facebook":
                    salary-= 150;
                    break;
                case "Instagram":
                    salary-= 100;
                    break;
                case "Reddit":
                    salary-= 50;
                    break;
            }
            if (salary <= 0){
                System.out.println("You have lost your salary.");
                return;
            }
        }

        System.out.println(salary);
    }


}