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

const john = new Person ("John", 40);
const mary = new Person ("Mary", 35);

console.log(john.tellMyName() + " and " + john.tellMyAge());
console.log(mary.tellMyName() + " and " + mary.tellMyAge());