07. Salary

# 07. Salary

n = int(input())
salary = int(input())
facebook = 150
instagram = 100
reddit = 50
amercement = 0

for i in range(n):
    website = input()
    if website == "Facebook":
        salary -= facebook
    elif website == "Instagram":
        salary -= instagram
    elif website == "Reddit":
        salary -= reddit
    if salary == 0:
        print(f"You have lost your salary.")
        break
else:
    print(f"{salary}")