Salary

num_of_tabs = int(input())
salary = int(input())

for i in range(num_of_tabs):
    open_tabs = input()
    if open_tabs == 'Facebook':
        salary -= 150
    elif open_tabs == 'Instagram':
        salary -= 100
    elif open_tabs == 'Reddit':
        salary -= 50
    else:
        salary = salary

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