Salary

n = int(input())
salary = int(input())
fine = 0

for i in range(n):
  web_page = input()
  if web_page == "Facebook":
    fine = 150
  elif web_page == "Instagram":
    fine = 100
  elif web_page == "Reddit":
    fine = 50
  else:
    fine = 0
  salary -= fine

  if salary <= 0:
    print("You have lost your salary.")
    break


if salary > 0:
  print(salary)