# Enter your code here. Read input from STDIN. Print output to STDOUT

from collections import Counter

X = input()
sizes = input().split(" ")
N = input()

shoes_summry = Counter(sizes).items()
shoes_summry = dict(shoes_summry)

earned = 0


for i in range(int(N)):
    size_price = input().split(" ")
    shoe_size, price = size_price
    price = int(price)
    
    if shoe_size in shoes_summry:
        if shoes_summry[shoe_size] > 0:
            earned += price
            shoes_summry[shoe_size] -= 1  
          

print(earned)