Set Mutations

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    A=int(input()) L1=set(map(int,input().split())) N=int(input()) for _ in range(N): S=input().split() L2 = set(map(int, input().split())) if S[0]=="intersection_update": L1.intersection_update(L2) elif S[0]=="update": L1.update(L2) elif S[0]=="symmetric_difference_update": L1.symmetric_difference_update(L2) elif S[0]=="difference_update": L1.difference_update(L2) print(sum(L1))