1
class Solution:
2
    def numUniqueEmails(self, emails: List[str]) -> int:
3
        def ets(email):
4
            s, domain = email[: email.index("@")], email[email.index("@") :]
5
            s = s.replace(".", "")
6
            s = s[: s.index("+")] if "+" in s else s
7
            return s + domain
8

9
        dict = {}
10
        for i in emails:
11
            dict[ets(i)] = 1
12
        return len(dict)