03. Piccolo js fundamentals

function solve(args) {
  const parking = {};

  args.forEach((element) => {
    const [direction, carNumber] = element.split(', ');

    if (direction === 'IN') {
      parking[carNumber] = carNumber;
    } else {
      delete parking[carNumber];
    }
  });

  Object.keys(parking).length !== 0 ?
    Object.keys(parking)
      .sort((a, b) => a.localeCompare(b))
      .forEach((carNumber) => {
        console.log(`${carNumber}`);
      })
    : console.log('Parking Lot is Empty');
}