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

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

  tellMyAge(age) {
    console.log(`I am ${this.age} years old`);
  }
};
person1 = new Person('John', 40);
person2 = new Person('Mary', 35);

person1.tellMyName();
person1.tellMyAge();
person2.tellMyName();
person2.tellMyAge();