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n, m = map(int, input().split())
narr = list(map(int, input().split()))
A = set(map(int, input().split()))
B = set(map(int, input().split()))
happiness = 0
for i in narr:
if i in A:
happiness += 1
elif i in B:
happiness -= 1
else:
happiness = happiness
print(happiness)
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n, m = map(int, input().split()) narr = list(map(int, input().split())) A = set(map(int, input().split())) B = set(map(int, input().split())) happiness = 0 for i in narr: if i in A: happiness += 1 elif i in B: happiness -= 1 else: happiness = happiness print(happiness)