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

console.log('How old are you ? ')
process.stdin.on('data', (age) => {
let born = 2019;
born = born - age;
if ( age <= 99 && > 0){
    console.log('You were born in ' + born);
}
else {
    console.log('Error !');
}
process.exit()
})