text: 'use strict';
  
  function createBase(base) {
    // Replace this comment and the next line with your code
    return function (num) {
      return base + num;
    };
  }
  
  const addSix = createBase(6);
  
  console.log(addSix(10)); // returns 16
  console.log(addSix(21)); // returns 27
  
  // Do not change or remove anything below this line
  module.exports = createBase;
  