text: "use strict";
  
  function createBase(number1) {
    let counter = 0;
    let sum = 9;
    return function () {
      sum += number1 + (counter * number1) / 2;
      counter++;
      return sum;
    };
  }
  
  const addSix = createBase(6);
  
  // Put here your function calls...
  console.log(addSix());
  console.log(addSix());
  console.log(addSix());
  