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n,m=list(map(int,input().split())) array=list(map(int,input().split())) A=set(map(int,input().split())) B=set(map(int,input().split()))
happiness=0 for num in array: if num in A: happiness+=1 elif num in B: happiness-=1 print(happiness)
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No Idea!
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n,m=list(map(int,input().split())) array=list(map(int,input().split())) A=set(map(int,input().split())) B=set(map(int,input().split()))
happiness=0 for num in array: if num in A: happiness+=1 elif num in B: happiness-=1 print(happiness)