JS_FUND_AssocArray_EX_Picolo

function picolo(inputArr) {
  let parking = new Set();

  for (let lines of inputArr) {
    let [command, number] = lines.split(", ");
    if (command == "IN") {
      parking.add(number);
    } else {
      parking.delete(number);
    }
  }

  if ((parking.size == 0)) {
    console.log(`Parking Lot is Empty`);
  }  else  {
     let resultArr = Array.from(parking).sort();
     for (carNumber of resultArr) {
      console.log(carNumber);
    }
  }
}