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

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

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())