Nina Hwang

def self_introduction(name, job, city, country):
    return f"""
Hello, I'm {name}. I'm a {job} from {city}, {country}.
    """

def greeting():
    return "Nice to meet you!"

print(self_introduction(
    name="Nina",
    job="back-end developer",
    city="Incheon",
    country="South Korea"
    )
)
print(greeting())