/**
 * This function takes in two lists representing the collection of songs of two musicians and returns the count of unique songs they have in common.
 */
fun countUniqueSongs(musician1: List<String>, musician2: List<String>): Int {

    val uniqueSongs = (musician1.toSet() union musician2.toSet()) - (musician1.toSet() intersect musician2.toSet())
    return uniqueSongs.size
}
/**
 * This function takes in two lists representing the collection of songs of two musicians and returns the count of unique songs they have in common.
 */
fun countUniqueSongs(musician1: List<String>, musician2: List<String>): Int {
/**
 * This function takes in two lists representing the collection of songs of two musicians and returns the count of unique songs they have in common.
 */
fun countUniqueSongs(musician1: List<String>, musician2: List<String>): Int {

    val uniqueSongs = (musician1.toSet() union musician2.toSet()) - (musician1.toSet() intersect musician2.toSet())
    return uniqueSongs.size
}