class Person {
    constructor(name, age) {
        this.name = name;
        this.age = age;
    };
    tellMyName() {
        return `I am ${this.name}`
    }
    tellMyAge() {
        return `I am ${this.age}`
    }
}

const firstPerson = new Person('John', 40);
const secondPerson = new Person('Mary', 35);

firstPerson.tellMyName()
firstPerson.tellMyAge()

secondPerson.tellMyName()
secondPerson.tellMyAge()