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

  tellMyName() {
    return `I am ${this.name}`;
  }

  tellMyAge() {
    return `I am ${this.age} years old`;
  }
}

const person1 = new Person("John", 40);
const person2 = new Person("Mary", 35);

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

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