let a = "string"
let b = true
let c = null
let d = undefined

let firstName = "Eligijus"
let lastName = "Dzikavicius"
let isMarried = false
let age = 17
let live = "Lithuania"

let myAge = 17
let yourAge = 30

console.log("I am " + myAge + " years old.")
console.log("You are " + yourAge + " years old.")