function readLine() {
  return new Promise(function(resolve) {
    process.stdin.once('data', function(data) {
      resolve(data.toString().trim());
    });
  });
}
/**
 * Read one line from stdin and return it
 * @returns {Promise} Promise object to returns the value read from stdin
 */
Read one line from stdin and return it
@returns {Promise} Promise object to returns the value read from stdin
Read one line from stdin and return it @returns { Promise } Promise object to returns the value read from stdin
function readLine() {
  return new Promise(function(resolve) {
    process.stdin.once('data', function(data) {
      resolve(data.toString().trim());
    });
  });
}
function readLine ( ) { return new Promise ( function ( resolve ) { process . stdin . once ( 'data' , function ( data ) { resolve ( data . toString ( ) . trim ( ) ) ; } ) ; } ) ; }
Read one line from stdin and return it
 @returns {Promise} Promise object to returns the value read from stdin
Read one line from stdin and return it @returns { Promise } Promise object to returns the value read from stdin