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

    let person1 = new Person("Jhon", 40);
    let person2 = new Person("Mary", 35);

console.log(person1.tellMyName(),person1.tellMyAge());
console.log(person2.tellMyName(),person2.tellMyAge());