No Idea!

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    n, m = input().split(" ") arr = [int(i) for i in input().split(" ")] a = set([int(i) for i in input().split(" ")]) b = set([int(i) for i in input().split(" ")])

    sums = [] for i in arr: if i in a: sums.append(1) elif i in b: sums.append(-1) print(sum(sums))