#include<stdio.h>
#include<math.h>
// use #gcc <filename,c> -lm    to compile while using math.h
int main()
{
  int timeInSec = 0;
  printf("Enter the time in sec: ");
  scanf("%d",&timeInSec);
  
  int hour = timeInSec / 3600;
  int remTimeHr = timeInSec - hour * 3600;
  
  int min = remTimeHr / 60;
  int sec = remTimeHr - min * 60;
  
  printf("Time in desired format : %d:%d:%d\n",hour,min,sec);
  return 0;
}