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

let year = 2019


console.log('What\'s your age ? ')
process.stdin.on('data', (value) => {
    value = Number(value);
    if (value > 99){
        console.log('Value is too high')
    } else {
        console.log(year-value)
        process.exit()
    }

    process.exit()


})