Set Mutations

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    e = int(input()) e_list = set(list(map(int,input().split()))) op = int(input()) for i in range(0,op): k, num = input().split() if (k == 'intersection_update'): o = set(list(map(int, input().split()))) n = e_list.intersection_update(o) elif (k == 'symmetric_difference_update'): o = set(list(map(int, input().split()))) n = e_list.symmetric_difference_update(o) elif (k == 'difference_update'): o = set(list(map(int, input().split()))) n = e_list.difference_update(o) elif (k == 'update'): o = set(list(map(int, input().split()))) n = e_list.update(o) print(sum(e_list))