object Main {
????def main (args: Array[String]) {
????????val input:Int = scala.io.StdIn.readInt();
??
????????val hour:Int = input/(60*60) 
????????val min:Int?? = ( input % (60 * 60) ) / 60
????????val sec:Int?? = input % 60
????????println( hour + ":" + min + ":" + sec );
????}
}