n = int(input())
s = set(map(int, input().split()))
N = int(input())

for _ in range(N):
    command_list = list(map(str, input().split()))
    if command_list[0].lower() == 'pop':
        s.pop()
    elif command_list[0].lower() == 'discard':
        s.discard(int(command_list[1]))
    elif command_list[0].lower() == 'remove':
        try:
            s.remove(int(command_list[1]))
        except None:
            pass
print(sum(s))