/**
 * This function takes in a list of artists and appends new artists to it.
 */
fun addNewArtists(artistsList: MutableList<String>, newArtists: List<String>): MutableList<String> {

    for (artist in newArtists) {
        if (artist !in artistsList) {
            artistsList.add(artist)
        } else {
            // Complete the code to print a message if the artist is already in the list
        }
    }
    return artistsList
}
/**
 * This function takes in a list of artists and appends new artists to it.
 */
fun addNewArtists(artistsList: MutableList<String>, newArtists: List<String>): MutableList<String> {
/**
 * This function takes in a list of artists and appends new artists to it.
 */
fun addNewArtists(artistsList: MutableList<String>, newArtists: List<String>): MutableList<String> {

    for (artist in newArtists) {
        if (artist !in artistsList) {
            artistsList.add(artist)
        } else {
            // Complete the code to print a message if the artist is already in the list
        }
    }
    return artistsList
}