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

console.log('How old are you ? ')
process.stdin.on('data', (num) => {
  num = parseInt(num)
  if(typeof(num) == 'string'|| isNaN(num) == true || (2019-num) >= 2019){
    console.log('The value is incorrect')
  }else if (num > 99){
    console.log('You can\'t be this old, time to DIE')
  }else{
    console.log('You are born in  ' + (2019-num))
  }
  process.exit()
})