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n, m = map(int, input().split())
arr1 = list(map(int, input().split()))
A = set(map(int, input().split()))
B = set(map(int, input().split()))
happiness = 0
for i in arr1:
if i in A:
happiness+=1
elif i in B:
happiness-=1
print(happinesss)
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n, m = map(int, input().split()) arr1 = list(map(int, input().split())) A = set(map(int, input().split())) B = set(map(int, input().split())) happiness = 0 for i in arr1: if i in A: happiness+=1 elif i in B: happiness-=1 print(happinesss)