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

console.log('How old are you ? ')
process.stdin.on('data', (text) => {
  if (text <= 99) {
    console.log(`So... You're born in ${2019 - text}`)
  }
  else {
    console.log(`You're too old for us, sorry... :(`)
  }
  process.exit()
})