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

console.log('How old are you ? ')
process.stdin.on('data', (age) => {
	if (age > 0 && age < 99)
	{
		console.log('Yous was born in ' + (2019 - age));
	}
  else console.log("error")
  process.exit()
})