

import re





def 	__a     (      A__			:  str       ):
    SCREAMING_SNAKE_CASE										=   re.compile(R"^(\+91[\-\s]?)?[0]?(91)?[789]\d{9}$"       )
    if match := re.search(A__			,  A__       ):
        return match.string == phone
    return False


if __name__ == "__main__":
    print(indian_phone_validator('+918827897895'))


import os





def 	__a     (      ):
    SCREAMING_SNAKE_CASE										=   os.path.join(os.path.dirname(A__       )			,  "num.txt"       )
    with open(A__       ) as file_hand:
        return str(sum(int(A__       ) for line in file_hand       )       )[:10]


if __name__ == "__main__":
    print(solution())