from collections import Counter

n = int(input())
a_L = list(map(int,input().split()))
q = int(input())

L = Counter(a_L)
print(0)
# all_sum = sum(a_L)



# ans_L = []
# for i in range(q):
#     b,c = map(int,input().split())
#     if L[b] != 0:
#         diff = (c-b) * L[b]
#         all_sum = all_sum+diff
#         L[c] += L[b]
#     ans_L.append(all_sum+1)


# for i in ans_L:
#     print(i)