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

console.log('Give me your age')
process.stdin.on('data', (numero) => {
   let transformToNumber =parseInt(numero);
    if (transformToNumber>0 && transformToNumber<99) {
        console.log('You were born in ' + (2019 - transformToNumber));
    } else {
        console.log("error");
    }

  process.exit()
})