using System;
using System.Linq;

public class Program
{
    public static void Main()
    {
        string input = Console.ReadLine();
        string[] split = input.Split(':');

        ulong hour = ulong.Parse(split[0]);
        ulong minites = ulong.Parse(split[1]);
        ulong secounds = ulong.Parse(split[2]);

        ulong numberSteps = ulong.Parse(Console.ReadLine());
        ulong stepSeconds = ulong.Parse(Console.ReadLine());

      ulong total = numberSteps * stepSeconds + (hour * 60 * 60) + (minites * 60) + secounds;

        ulong  hour1 = total / 60 / 60;
        ulong  hour2 = (total - hour1 * 3600) / 60;
        ulong  hour3 = (total - hour1 * 3600) % 60;

        string printsHours = "" + hour1;
        string printsMinutes = "" + hour2;
        string printsSecounds = "" + hour3;

        if (hour1 > 24)
        {
            hour1 = hour1 % 24;
        }
        if (hour2 > 60)
        {
            hour1 = hour1 % 60;
        }
        if (hour1 < 10)
        {
            printsHours = "" + 0 + hour1;
        }
        if (hour2 < 10)
        {
            printsMinutes = "" + 0 + hour2;
        }
        if (hour3 < 10)
        {
            printsSecounds = "" + 0 + hour3;
        }


        /*Console.WriteLine(total);
        Console.WriteLine(printsHours);
        Console.WriteLine(printsMinutes);
        Console.WriteLine(printsSecounds);*/

        Console.WriteLine("Time Arrival: " + printsHours + ":" + printsMinutes + ":" + printsSecounds);
    }
}