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

console.log('How old are you ? ');
process.stdin.on('data', (number) => {
    if (number > 99 || number <= 0) {
        console.log('You lie!', 'How old are you really ?');
    } else if (number < 100) {
        yearOfbirth = 2019 - number;
        console.log(`You are born in ${yearOfbirth}.`)
        process.exit()
    }
});