from collections import Counter


def counter_results():
    no_of_shoes = int(input())
    shoe_size_list = list(map(int, input().split(' ')))
    num_of_shoe_size_dict = Counter(shoe_size_list)
    customer_numbers = int(input())
    earned_money = 0

    for _ in range(customer_numbers):
        size, price = list(map(int, input().split(" ")))
        if size in shoe_size_list and num_of_shoe_size_dict[size] != 0:
            num_of_shoe_size_dict[size] -= 1
            earned_money += price
    print(earned_money)
    
if __name__ == "__main__":
    counter_results()