process.stdin.resume()
process.stdin.setEncoding('utf8')

console.log('What\'s your age ? ')
process.stdin.on('data', (number) => {
    if (number<=99 && number > 0){
    year = 2019 - number;
    console.log('You are born in ' + year)
    } else {
    console.log('You are too old ')
    }
  process.exit()
})