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

console.log('Quel age as tu, ou va tu avoir cette année ? ')
process.stdin.on('data', (number) => {

    if (number < 100) {
        console.log('Tu es de ' + (2019 -number))
        process.exit()
    }else {
        console.log('Please, enter a number lesser than 100 ! ')
        process.exit()
    }

})