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

console.log('how old are you? ')
process.stdin.on('data', (age) => {
  date = 2019 - age;
  if (age < 99 && age > 0){
    console.log(date);
  }else if (age < 0){
    console.log('arrete de mentir');
  }else {
    console.log('trop vieux');
}
  process.exit()
})