08.Piccolo

function picollo (carArr) {
    let parkingLot = [];

    for (let i = 0; i < carArr.length; i++) {
        let [command, plate] = carArr[i].split(', ');
        if (command === 'IN') {
            if (!parkingLot.includes(plate)) {
                parkingLot.push(plate);
            }
        } else if (command === 'OUT') {
            let index = parkingLot.indexOf(plate);
            if (index !== -1) parkingLot.splice(index, 1);
        }
    }

    if (parkingLot.length > 0) {
        let sortedArr = parkingLot.sort();
        console.log(parkingLot.join('\n'));
    } else {
        console.log("Parking Lot is Empty")
    }
}