import java.util.Scanner;

class SecToTime
{
        public static void main (String arr[])
          {
   	int hr;
	int mn;
	int sec;
	System.out.println("*************Second To Time Converter*************");
	System.out.println("");
	System.out.println("Enter the time in seconds");
	Scanner scan = new Scanner(System.in);
	long s = scan.nextLong();
	hr = (int)(s/3600);
	int rem = (int)(s%3600);
	mn = rem/60;
	sec = rem%60;
	String hrStr = (hr<10 ? "0" : "")+hr;
	String mnStr = (mn<10 ? "0" : "")+mn;
	String secStr = (sec<10 ? "0" : "")+sec;
	System.out.println("HH : MM : SS");	
	System.out.println(hrStr+ " : "+mnStr+ " : "+secStr);
          }
}