using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _19.TheaThePhotographer
{
    class Program
    {
        static void Main(string[] args)
        {
            int totalPictures = int.Parse(Console.ReadLine());
            int filterTimePerPicture = int.Parse(Console.ReadLine());
            int factorFilteringPercentage = int.Parse(Console.ReadLine());
            int amountOfTimePerPicture = int.Parse(Console.ReadLine());
            //time for filtering
            decimal totalTime = (decimal)totalPictures * filterTimePerPicture;
                //Console.WriteLine(totalTime);
           //time for uploading good pictures
            decimal goodPictures = Math.Ceiling(factorFilteringPercentage*totalPictures/100m);
                //Console.WriteLine("goodPictures={0}",goodPictures);
            // time for uploading
            decimal timePerUploading = goodPictures*amountOfTimePerPicture;
                //Console.WriteLine(timePerUploading);
            //output the data:
            totalTime = totalTime + timePerUploading;
                //Console.WriteLine(totalTime); //total time in seconds
            //days
            decimal totalDays = Math.Floor(totalTime/(60*60*24m));
                //Console.WriteLine("days:{0}", totalDays);
            //hours
            decimal totalHours = Math.Floor(totalTime/3600m);
                //Console.WriteLine("hours:{0}", totalHours);
            //minutes
            decimal totalMinutes = Math.Floor((totalTime % 3600m)/60);
                //Console.WriteLine("minutes:{0}", totalMinutes);
            //seconds
            decimal totalSeconds = ((totalTime % 3600m)/60);
            totalSeconds = Math.Round(Math.Abs(totalMinutes - totalSeconds)*60);
                //Console.WriteLine("seconds:{0}", totalSeconds);
            //output format data
            string days =Convert.ToString(totalDays);
            string hours = Convert.ToString(totalHours);
            string minutes =Convert.ToString(totalMinutes);
            string seconds = Convert.ToString(totalSeconds);
            Console.WriteLine("{0}:{1:00}:{2:00}:{3:00}",
                totalDays, totalHours, totalMinutes, totalSeconds);
        }
    }
}