const readline = require('readline');

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout
});

function Demander(question) {
  return new Promise((resolve, reject) => {
    rl.question(question, (response) => {
      resolve(response);
    })
  })
}

async function main()  {
  let response = await Demander("A ?");
  console.log(response);
  rl.close();
}
main();