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


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

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