Nested Loops - Building

function building(args) {

    let floor = args[0];
    let numberOfRooms = args[1];

    for (let i = floor; i >= 1; i--) {
        let appartement = "";
        for (let j = 0; j < numberOfRooms; j++) {
            if (i == floor) {
                appartement += "L" + i + j + " ";
            } else if (i % 2 == 0) {
                appartement += "O" + i + j + " ";
            } else {
                appartement += "A" + i + j + " ";
            }
        }
        console.log(appartement);
    }
}