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

    console.log('How old are you ?')
    process.stdin.on('data', (age) => {
    const currentDate = new Date();
    const currentYear = currentDate.getFullYear();
    let year;
    if (!isNaN(age))
           year = parseInt(age)
    if (year !=null)
  if (age < 99) {
    let calculAnnee = currentYear - age;
    console.log(calculAnnee)

  } else {
  AskAge(age);
  }
  process.exit()
})