process.stdin.resume()
process.stdin.setEncoding('utf8')
let year=2019

console.log('What\'s your age ? ')
process.stdin.on('data', (customerAge) => {
    if(customerAge>0 && customerAge<99){
        console.log('You\'re born in '+(year - customerAge))
        process.exit()
    }else{
        console.log('Youre age must be betwin 1 and 99 ')
    }
})