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# Enter your code here. Read input from STDIN. Print output to STDOUTn,m=map(int,input().split())arr=map(int,input().split())arr_list=list(arr)A=map(int,input().split())A=set(A)B=map(int,input().split())B=set(B)happiness=0foriinarr_list:if(iinA):happiness+=1elif(iinB):happiness-=1print(happiness)
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