public class Main{public static void main(String[]z){int a=new java.util.Scanner(System.in).nextInt();System.out.println(a/3600+":"+a/60%60+":"+a%60);}} public class Main{public static void main(String[]z){int a=new java.util.Scanner(System.in).nextInt();System.out.println(a/3600+":"+a/60%60+":"+a%60);}} Main public static void main(String[]z){int a=new java.util.Scanner(System.in).nextInt();System.out.println(a/3600+":"+a/60%60+":"+a%60);} main {int a=new java.util.Scanner(System.in).nextInt();System.out.println(a/3600+":"+a/60%60+":"+a%60);} int a=new java.util.Scanner(System.in).nextInt(); a new java.util.Scanner(System.in).nextInt() new java.util.Scanner(System.in).nextInt new java.util.Scanner(System.in) System.out.println(a/3600+":"+a/60%60+":"+a%60) System.out.println System.out System System.out a/3600+":"+a/60%60+":"+a%60 ":" a/60%60 a/3600+":"+a/60%60+":"+a%60 a/3600 a 3600 ":" a/60%60 a/60 a 60 60 ":" a%60 a 60 String[]z z public class Main{public static void main(String[]z){int a=new java.util.Scanner(System.in).nextInt();System.out.println(a/3600+":"+a/60%60+":"+a%60);}} public class Main{public static void main(String[]z){int a=new java.util.Scanner(System.in).nextInt();System.out.println(a/3600+":"+a/60%60+":"+a%60);}} Main
public class Main{public static void main(String[]z){int a=new java.util.Scanner(System.in).nextInt();System.out.println(a/3600+":"+a/60%60+":"+a%60);}}