class CloudEngineer:
    def __init__(self):
        self.name = "Rajan Prasad"
        self.role = "Cloud Engineer"
        self.blog = "https://rajan.work/blog/"
        self.portfolio = "https://rajan.work/"
        self.knowledge_base = [
            "AWS",
            "Back-end & Front-end Development",
            "TypeScript",
            "Python",
        ]
        self.knowledge_base.insert(0, "Backend Engineering")

    def say_hi(self):
        print(
        """
        Hey people, thanks for dropping by!

        This is {name}. I work as a {role} and recently I am focusing on
        {focus} for my personal growth.

        I have wide interests, but most of them are {knowledge_base}.

        I write down tips and lecture notes on my personal tech blog,
        which can be found here: {blog}
        """
        .format(
                name=self.name,
                role=self.role,
                portfolio=self.portfolio,
                focus=self.knowledge_base[0],
                knowledge_base=", ".join(self.knowledge_base[1:]),
                blog=self.blog,
               )
           )


me = CloudEngineer()
me.say_hi()