from enum import Enum


class Operator(Enum):
    SFR = "SFR"
    LYCAMOBILE = "LYCAMOBILE"
    CHINA_TELECOM = "CHINA_TELECOM"


def check_operator(ccid: str) -> Operator:
    if "893313" in ccid:
        return Operator.LYCAMOBILE
    elif "893310" in ccid:
        return Operator.SFR
    return Operator.CHINA_TELECOM