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

tellMyName(name){
console.log (`i'm ${this.name}`)}

tellMyAge(age){
    console.log (`i'm ${this.age} years old`)}
}
 let John = new Person("john",40);
 let Mary = new Person("mary",35)

John.tellMyName();
John.tellMyAge();
Mary.tellMyAge();
Mary.tellMyName();