class Person {
    constructor(name, age){
        this.name = name;
        this.age = age;
    }

    toString(){
        return "Name is: " + this.name + " age is " +this.age;
    }

}

class Student {
    constructor(name, gpa){
        this.name = name;
        this.gpa = gpa;
    }

    toString(){
        return "Name is: " + this.name + " gpa is " +this.gpa;
    }

}

function saySomething(phrase) {
    console.log(phrase)
}

module.exports.Person = Person;
module.exports.Stu = Student;
module.exports.saySomething = saySomething;

module.exports = {
    Person: Person,
    Stu: Student
}